baber/WOPTO huggingface dataset:
Patent HR-P20050067-B1 (HR)
Inventor: ETTLINGER RODERICH
IPC: B29C48/694
Filed: 2005-01-21
Abstract: Uređaj za kontinuirano filtriranje smjesa materijala, naročito za razdvajanje nečistoća iz taljevina plastičnih masa, sa jednim filterom (2), oblika šupljeg cilindra, postavljenim u kućište (1), sa unutrašnjim prostorom (15) formiranim unutar filtera (2), sa jednim prstenastim prostorom (22) formiranim između vanjske strane filtera (2) i unutrašnjeg zida kućišta (1) i jednim uređajem (23, 24) za čišćenje za uklanjanje nečistoća zadržanih na filteru (2), a filter (2) je postavljen obrtno pokretan motorom oko osi (3) unutar kućišta (1), naznačen time, što uređaj (23, 24) za čišćenje obuhvaća najmanje jedan čistač (23, 28, 30) za uklanjanje u radijalnom smjeru nečistoća zaostalih na filteru (2) i jedan transportni uređaj (24) za odnošenje nečistoća uklonjenih čistačem (23, 28, 30) sa filtera (2), pri čemu motorom obrtno pokretani filtar (2) i transportni uređaj (24) mogu imati posebne pogonske uređaje. Patent sadrži još 14 patentnih zahtjeva.
Patent JO-1999-B1 (JO)
Title: LH-RH' peptide and analogues their uses and pharmaceutical composition containing them
Inventor: REMI DELANSORNE REMI
IPC: A61K45/00
Filed: 1997-11-12
Granted: 1999-05-15
Abstract: The invention relates to LH-RH peptide analogues with excellent affinity for LH-RH receptors, of the formula: V-W-X-SPL-Y-Pro-Z where V,W,X,Y and Z are as defined in the specification and SPL means spirolactam. The invention also relates to the uses of said peptide analogues and to the parmaceutical compositions containing them.
Patent JO-P20100287-B1 (JO)
Title: Pharmaceutical compound containing gestagens and/or oestrogens and 5-methyl-(6S)-tetrahydrofolates
Inventor: KAI STROTHMANN
IPC: A61P15/18
Filed: 2010-08-12
Granted: 2022-03-14
Abstract: The present invention relates to a pharmaceutical composition which comprises progestogens, preferably drospirenone, estrogens, preferably ethinylestradiol and 5-methyl-(6S)-tetrahydrofolate, can be employed as oral contraceptive and moreover prevents disorders caused by folate deficiency in the consumers, in particular cardiovascular disorders and, after conception of the embryo, congenital malformations caused by folate deficiency such as, for example, neural tube defects, ventricular valve defects, urogenital defects, and cleft lip, jaw and palate, without masking the symptoms of vitamin B12 deficiency, and at the same time even in the case of homozygous or heterozygous polymorphism of methylenetetrahydrofolate reductase facilitates unimpaired utilizability of the folate component 5-methyl-(6S)-tetrahydrofolate by the body and thus its biological activity for preventing the abovementioned congenital malformations caused by folate deficiency. In addition, a prolonged protective effect is maintained after discontinuation of the contraceptive.
Patent KR-800000462-B1 (KR)
Title: Jointing method for the ends of misaligned pipes
Inventor: WHITE W JR
IPC: F16L27/00
Filed: 1970-12-02
Granted: 1980-05-29
Abstract: To interconnecting two pipes which are misaligned under unfavorable environment such as in the water, a pair of housings, each of which is mounted slidably on the adjacent pipe ends to be coupled, are provided each with a fluid actuatable, annular, radially movable resilient seal and gripping means arranged to engage the surface of the pipes. Adjacent ends of the housings carry bias flanges arranged for mating contact through a plurality of relative connector angular positins.
Patent KR-790000782-B1 (KR)
Title: Digital synchronization system
Inventor: ALIN REUBEN BALABAN
Filed: 1974-10-16
Granted: 1979-06-30
Abstract: A deflecting synchronizer for a TV receiver, consisted of a first and second synchronizing pulse sources, a resettable counter for generating the first and second signals, an activating device, and other devices connected to the first synchronizing pulse source for resetting the counter when the first synchronizing pulse source generates a pulse output and the resettable counter generates the second pulse output.
Patent KR-790001451-B1 (KR)
Title: Method for condensation of carbamate in urea-synthesis installations
Inventor: VINCENZO LAGANA
IPC: C05C9/00
Filed: 1976-08-17
Granted: 1979-10-20
Abstract: A condensation zone was equipped in the bundle of horizontal tubes in fixed head of 0.5-5 atm. NH3+CO2+H2O steam was produced by high pressure evaporation process and the mixture of this steam and carbonate soln. contg. much water was recovered by the condensation heat by the cycling water jacket.  In the urea synthesis method, carbamate soln. was produced by condensating the steam and it can be recycled in the urea reactor by feeding it back into the carbamate condensator.
Patent KR-810001587-B1 (KR)
Title: Programming systems for automatic sewing machines
Inventor: MANABE DAKAO
IPC: D05B21/00
Filed: 1977-04-06
Granted: 1981-10-27
Abstract: In a programming system for an automatic sewing machine wherein a sewing command program for producing sewing machine control signal is stored in the addressable locations of a memory device the program is prepared by using a relatively simple, logical operation circuits instead of using an electronic computer.
Patent KR-810001226-B1 (KR)
Title: Memorizing aid
Inventor: MITSUYA YOSHIHIDE
IPC: G09B1/00
Filed: 1977-08-08
Granted: 1981-09-29
Abstract: Memorizing aid of word which was written on endless belt was made by accepting the belt in flat and box-like body(A), inwhich the word written on belt were exposed through a transparent windows(30,31).  The belt was moved by 1 pitch by pushing the push botton of body, and the belt was actuated with the axes.
Patent KR-820001527-B1 (KR)
Title: Process for forming pattern wise coated powder layer
Inventor: NONOGAKI SABURO
IPC: H01J9/227
Filed: 1978-04-13
Granted: 1982-08-27
Abstract: A phosphor powder coating method for color TV screens is described.  Arom. diazonium salts are used for adhesion.  The salts are deposited on the substrate from aq. or alc. solns. by evapn.  The film is then exposed to UV through a shadow mask to make spots of it sticky and a green phosphor is added by blowing with air.  In an analogous manner, blue and red phosphors are added side by side with the green ones.  Thus, an aq. soln. of 1 part of the ZnCl2 p-dimethylaminobenzenediazonium chloride double salt, 0.01 parts of the condensation product of Na naphthalenesulfonate with formaldehyde, and 20 parts H2O was evapd. to a film 1-μ thick by IR heating.  The screen wt. was 2.0-2.5 mg/cm2.
Patent KR-820000293-B1 (KR)
Title: Process for preparing surgical sutures
Inventor: KAPLAN DONALD S
IPC: A61L17/00
Filed: 1979-02-28
Granted: 1982-03-19
Abstract: An annealed nonabsorbable monofilament sterile surgical suture or ligature comprises a segmented polyether-ester block copolymer [(OR)nO2CR2CO [OR1O2CR2CO  (R and R1 = the same or different straight or branched C2-10 alkyl; R2 = 1,4-phenylene or cyclohexylene; n = no. of repeating units) with a molecular weight of 25,000-30,000.  Thus, a copolyester composed of polytetramethyleneoxide and polytetramethylene terephthalate had a pull strength, knot pull, and flexual modulus of 75.526, 41.055, and 0.54×105 lb/in2, respectively, flexual fatigue of 12.972 (cycles to failure), elongation at break 53%, and tenacity of 4.6.
Patent KR-820001762-B1 (KR)
Title: Thermoplastic elastomeric blend of monoolefin rubber copolymer
Inventor: RINEHART R
IPC: C08L23/16
Filed: 1979-04-17
Granted: 1982-09-30
Abstract: Uncured or partially cured blends of 15-80 % EPM or EFDM rubber,, 5045 % nonelastomeric amorphous polypropylene or propylene -oldfin copolymer, and 15-80 % cryst,  polyolefin are thermoplastic elastomers.  Thus, a mixt.  of dicyclopentadiene ethylene-propylene copolymer 25, isotactic polypropylene 65, A-FAX 500 10, and antioxidant 1.5 parts had shore D hardness 52, 100% modulus 159.2kg/cm2, tensile strength 167.4kg/cm2, and elongation 267%.
Patent KR-830002492-B1 (KR)
Title: 직입(織入) 슬라이드 파스너 제조기의 엘레멘트 성형용 선조의 도입장치
IPC: A44B19/42
Filed: 1980-07-02
Granted: 1983-10-27
Abstract: 내용 없음.
Patent KR-880000771-B1 (KR)
Title: Method and apparatus for shigting main nojjle on a fluid-jet type loom
Inventor: SSUJI GANJI
IPC: D03D47/38
Filed: 1982-02-09
Granted: 1988-05-06
Abstract: Jet nozzles of a shuttleless loom are arranged in a vertical tier, which is vertically adjustable to align individual nozzles selectively with the weft picking channel, e.g. for weaving pattern fabric with wefts of different colours.  Specifically the array of nozzles is vertically adjustable along a straight-line path by sliding, or along an arcuate path by pivoting, by a push rod actuated by a cam on the loom main shaft and coupled to the push rod by a bifurcated lever with a cam follower.
Patent KR-860000223-B1 (KR)
Title: Vacuum circuit breaker
Inventor: HIDEAKI WAKAYAMA
IPC: H02B13/035
Filed: 1982-03-05
Granted: 1986-03-15
Abstract: The vacuum circuit breaker comprises a base, a support frame and an insulating frame. The insulating frame has a number of housing portions juxtaposed and separated from one another. These housing portions are made as a unit of plastic. The insulating frame is supported by the suppot frame, which is detachably mounted on the base. The vacuum circuit breaker has a number of vacuum valves, each having a fixed and a movable electrode, and several sets of main circuit conductors. Each vacuum valve and each set of main circuit conductors are provided in each housing portion. The vacuum circuit breaker has an operating mechanism that moves the movable electrode of the vacuum valve. The operating mechanism is supported by the support frame.
Patent KR-850000391-B1 (KR)
Title: Method of improving the ductility of the coating of an aluminum-zinc alloy coated ferrous product
Inventor: TOROK THEODORE E
IPC: C23C2/08
Filed: 1982-04-22
Granted: 1985-03-25
Abstract: In the method of improving the ductility of the coating of an aluminum-zinc alloy-coated ferrous product, after heat treating the coating at 90≰C-420≰C, it is placed on the ferrous product in the minimum time, which is expressed in following equation at the above- mentioned temperature. The coated ferrous product is then cooled to the surrounding temperature, at the rate of /↿F(0.55≰C)/min. in order to prevent incoherent, over-seasoned, second particles in the product from precipitating.
Patent KR-860000596-B1 (KR)
Title: Short girdle
Inventor: SHIBUSAWA MASARU
IPC: A41C1/02
Filed: 1983-05-31
Granted: 1986-05-22
Abstract: Girdle(A) has front(1) and rear(2) body parts each of which has part of the leg openings(3,3'), an abdomen support panel(4) extending from the girdle top edge with its sides(4a,4b) converging downwardly, and an extension of the panel extending between the legs and up to connect with the central lower edge(9) of the rear body to form a crotch panel. Arrangement provides comfort when walking or sitting while still moulding the waist and hips.
Patent KR-900000319-B1 (KR)
Title: Image fibers
Inventor: TSUNO KOICHI
IPC: F02M31/20
Filed: 1984-01-27
Granted: 1990-01-25
Abstract: An image fiber to prevent ambient light penetration comprises optical fiber cores and cladding which surrounds the cores and the spaces between them.  A primary coating contg. a light absorbing substance covers the cores and the cladding.  A quarts sleeve is between the primary coating and the cores.  Pref. the light absorbig material is C particles, NiO, Co2O3, CuO, Cr2O3 or MnO.  Fiber in which incidence of light from the outside is prevented and a high contrast field image obtained.
Patent KR-910009797-B1 (KR)
Inventor: HOSOKAWA ICHIRO
IPC: B60C11/04
Filed: 1984-03-24
Granted: 1991-11-30
Abstract: 내용 없음.
Patent KR-870001231-B1 (KR)
Title: Arrangement for starting electric motor
Inventor: KO SE-YON
IPC: H02P1/00
Filed: 1984-12-29
Granted: 1987-06-22
Abstract: The control circuit includes a reference sig. genrtr. comprising a sig. genrtr, cir., a crystal oscillator and a ref. counter, a mono- stable multivibrator giving the output of the desired sig. phase thru variable resistor, a pulse generator cir. giving sampling sigs., a data counter counting width of the pulse from the multivibrtr. by demulcified sig. from the ref. sig. genertr., a decoder controlling phases for mode opertns of cirs., and pulse width modulator giving sig. outputs to control the phase of a motor.  The whole function of the control cir. can be digitalized to be integrated into a chip for highly precise control operation.
Patent KR-920009795-B1 (KR)
Title: Method for replacing tubes in a head or drum
Inventor: SPADA RALPH E
IPC: F16L41/08
Filed: 1985-04-25
Granted: 1992-10-22
Abstract: In a method for replacing tubes in a drum or header, without removing the whole tube entirely, the old tube (12) is cut off level with the header-member (14); a recess coterminous with the diameter of the tube (12) is machined into the header creating a seat for a new tube (16); the recessed old tube end (12) is beveled (17) and the old tube (12) is welded (18) into the header-member along the bevel. A new tube (16) is then inserted into the seat and welded (24) to the exterior of the header-member (14). A countersink (20) can be machined in the surface of the header-member to create a greater surface for welding of the new tube (16).
Patent KR-890004434-B1 (KR)
Title: 정보판독장치
IPC: H04N1/00
Filed: 1985-06-17
Granted: 1989-11-03
Abstract: 내용 없음.
Patent KR-890002483-B1 (KR)
Title: The structure of fishing tool
Inventor: OMURA LIYUICHI
IPC: A01K87/00
Filed: 1985-07-30
Granted: 1989-07-10
Abstract: The elastic finger hook (5) for holding the grip of the rod tightly is located on the hand grip of the rod (8).  The hook is bent to the rod direction when the person grips the rod and the surface of the hook is covered with urethane not to damage the finger.
Patent KR-880000449-B1 (KR)
Title: Glass composition
Inventor: KIM JONG-WON
IPC: C03C3/097
Filed: 1985-09-17
Granted: 1988-04-06
Abstract: A high-resolution cathod-ray tube is prepared by adding Nd2O3 (0.1- 3.0 wt.%), Cr2O3 (0.0005-0.005 wt.%) and Fe2O3 (0.01-0.1 wt.%) to basic glass composition for the cathod-ray tube.  The prepared cathod-ray tube has excellent performance in imagecontrast and brightness and low dichroism.
Patent KR-940000541-B1 (KR)
Inventor: MITSUHASHI MASAKAZU
IPC: C07K14/57
Filed: 1985-12-19
Granted: 1994-01-24
Abstract: 내용 없음.
Patent KR-930002846-B1 (KR)
Inventor: OUHADI TRAZOLLAH
IPC: C11D1/72
Filed: 1985-12-30
Granted: 1993-04-12
Abstract: 내용 없음.
Patent KR-890000605-B1 (KR)
Title: Mri equipment
Inventor: SKIMOTO HIROSI
IPC: G01R33/32
Filed: 1986-06-25
Granted: 1989-03-21
Abstract: The magnetic resonance imaging appts. comprises a transmission probe head, a reception probe head, and an inclined magnetic field coil. The transmission probe head applies a highfrequency magnetic field to a subject, while the reception probe head receives magnetic resonance signals from the subject.  The inclined magnetic field coil means generates and applies an inclined magnetic field to the subject.  If the inclined magnetic field is applied to the subject, the magnetic resonance signals detected by the reception probe head are provided with generative position information.
Patent KR-930005698-B1 (KR)
Title: Twisting tumbler cylinder lock and key
Inventor: OLIVER RON N
IPC: E05B15/14
Filed: 1986-07-19
Granted: 1993-06-24
Abstract: A twisting tumbler lock with dual locking function has tumbler points at tumbler positions selectively offset forwardly or rearwardly and selectively rotatable to different angular positions to create an enormous number of keying combinations. A key (18) according to the invention includes one or more bits (50) which are offset forwardly or rearwardly of a corresponding tumbler axis (22).
Patent KR-900002380-B1 (KR)
Title: Reel apparatus for magnetic tape cassette
Inventor: KUBO MORICHIKA
IPC: G11B23/113
Filed: 1986-12-15
Granted: 1990-04-13
Abstract: Guide pulleys (10) move forward into the wind-up position and bring a leader tape (2) out of the cassette.  The tape is attached to two separate holders (11,12).  The second holder (12) is then retracted to allow separating the cut tape ends.  This results in a slack loop of tap producing from the cassette.  An external jet (N) directs pressurised air through a hole in the cassette housing aganist the tape, pulling it back into the cassette.  A third tape holder then places one end of the magnetic tape on the leader tape, allowing them to be joined using an adhesive.  The tape is then removed from the holders and wound onto the spools in the cassette.
Patent KR-950000136-B1 (KR)
Inventor: LIRO CLAUD
IPC: G21C7/26
Filed: 1986-12-29
Granted: 1995-01-10
Abstract: 내용 없음.
Patent KR-900000701-B1 (KR)
Title: Electronic cash register
Inventor: AYA HIDEAKI
IPC: G06Q10/08
Filed: 1987-02-20
Granted: 1990-02-07
Abstract: The register for recording of time when the number of items is decreased from certain quantity comprises: a means for storing the amount of items, selling time, and selling amounts of each items; requesting means for requesting the report on the sales of a day; a renewing means for renewing the selling time stored in the memory by present time when a selling accurs; a detecting means for detecting the decrease of the quantities of stock to a certain level; and a means for printing the data about the detected quantity of stock and the data representing the time when the decrease is started.
Patent KR-900000551-B1 (KR)
Title: Method for making beta-(4.5-diphenyloxazol-2-yl)propionic acids
Inventor: RHO YOUNG-SU
IPC: C07D263/32
Filed: 1987-03-25
Granted: 1990-01-31
Abstract: A beta-(4,5-diphenyloxazole-2-yl) propionic acid of formula (I) is prepd. by reacting a benzoin of formula (II) with a alkyl hemisuccinate HOOC-CH2-CH2-COOR to obtain a benzoin alkyl succinic ester, condensating the ester with an ammonium acetate, and hydrolizing a produced alkyl-beta-(4,5-diphenyloxazole-2-yl) propionate in a acid or alkali medium.  In (I), R is methyl, ethyl, propyl or lower alkyl.  (I) is useful as an antiinflammatory agent.
Patent KR-900001265-B1 (KR)
Title: Manufacture of high degree of purity si
Inventor: YUN PUNG
IPC: H01L21/20
Filed: 1987-05-01
Granted: 1990-03-05
Abstract: High purity Si for semiconductor is prepared by heating one/ multicoupled Si core rod or Si thin sheet by applying electric current directly up to the reaction temperature 600-1300oC, and supplying gaseous compound of semiconductor material.  The coupled Si core rod or Si thin sheet can be pre-heated to 500-900oC by using ultrasonic heating equipment of 915MHz or 2450MHz.
Patent KR-900005720-B1 (KR)
Title: Variable capacity vane compressor
Inventor: NAKAJIMA NOBUYUKI
IPC: F04B49/02
Filed: 1987-05-25
Granted: 1990-08-06
Abstract: The compressor (1) comprises a cylinder (2) whithin a housing, formed by a cam ring and a pair of front and rear side blocks (9). A rotor (10) within the cylinder has a series of slidably fitted panes (15) in slits (14). The opening angle of a second inlet port is controlled by means responsive to a difference between first and second pressure chambers within the housing. A valve selectively opens and closes a low pressure communication passage and simultaneously opens a high pressure communication passage when the pressure within a low pessure zone exceeds a predetermined value.
Patent KR-900007465-B1 (KR)
Title: Automatic gas distributing device controlled by a direct application of high gas pressure of a source for supplying a pipe with gas from an alternative gas source
Inventor: NAKAMURA MASAKI
IPC: F17D1/04
Filed: 1987-07-11
Granted: 1990-10-10
Abstract: The automatic gas distributing device delivers gas at a constant predetermined pressure from one of several high pressure vessels arranged in a ring connecting. The device has flow paths corresp. to the high pressure vessels, and is controlled by the direct application of pressures of the gas contained in the associated vessels to the relevant stop valves. The device automatically sets into operation a high pressure vessel having a lower gas pressure than other vessels. The device interrupts the high pressure vessel in operation when the gas pressure of the vessel is reduced below a control pressure, and actuates the succeeding vessel.
Patent KR-900004547-B1 (KR)
Title: A process for the production and burning of a natural-emulsified liquid fuel
Inventor: POLANCO DOMINGO R
IPC: C10L1/00
Filed: 1987-08-25
Granted: 1990-06-29
Abstract: A process for the prodn. of a natural liquid fuel for burning comprises (a) forming an oil in water emulsion from a bitumen crude oil, the bitumen crude oil having a viscosity of 1,4005,100,000 cSt at 50 deg.C., the oil in water emulsion being formed down hole in a well by injecting a mixture comprising water and emulsifier additive into the well to form the emulsion, the emulsion having a droplet size of 10-60 micron m, (b) pumping the oil in water emulsion from the well, and (c) adjusting the alkali metal content of the emulsion so that the emulsion has an alkali metal content of at least 50 ppm.
Patent KR-960012055-B1 (KR)
Inventor: SHIBATA RYUUJI
IPC: H01L29/78
Filed: 1987-11-05
Granted: 1996-09-11
Abstract: 내용없음
Patent KR-910005523-B1 (KR)
Title: Auto tracking circuit and method for video
Inventor: KIM KYUNG-SOO
IPC: G11B5/584
Filed: 1987-12-10
Granted: 1991-07-31
Abstract: The circuit controls the capstan motor to track the  position where the envelope signal is greatest so that  the  head  searches the tape track correctly. The circuit comprises a  condenser  (C1) filtering the DC element in the envelope signal an  amplifier  (1) amplifying the filtered signal to certain level, and A/D converter (2) converting the amplified  analog  signal  to  digital  one,  a microprocessor (3)  detecting  the  position  where  the  envelope signal is maximum and providing the corresponding  PWM  signal,  a low pass filter (4) filtering the PWM signal to DC  level,  and  a system controller (5) controlling the capstan motor with  filtered DC.
Patent KR-940007581-B1 (KR)
Inventor: GREIM GUNTER
IPC: H04N5/783
Filed: 1985-10-09
Granted: 1994-08-20
Abstract: 내용 없음.
Patent KR-970002615-B1 (KR)
Title: Oral medical preparation with sustained release
Inventor: ZIERENBERG BERND
IPC: A61K9/52
Filed: 1988-01-20
Granted: 1997-03-06
Abstract: The medicinal preparation having controlled continuous release of active compound is prepared from an excipient based on biologically degradable cyclic carboxylic acid esters, oligomers derived therefrom and/or polymers.
Patent KR-910003518-B1 (KR)
Inventor: KUROSAWA RYOICHI
IPC: G01D5/244
Filed: 1988-03-18
Granted: 1991-06-03
Abstract: 내용 없음.
Patent KR-910008953-B1 (KR)
Inventor: ANDOWOO SEU
IPC: H04N5/372
Filed: 1988-06-15
Granted: 1991-10-26
Abstract: 내용 없음.
Patent KR-910003819-B1 (KR)
Inventor: IIMURO SHIGERU
IPC: C07C67/00
Filed: 1989-01-07
Granted: 1991-06-12
Abstract: 내용 없음.
Patent KR-960013384-B1 (KR)
Title: On-off device of toilet cover and seat
Inventor: GOBAYEASHI GEIICHI
IPC: A47K13/10
Filed: 1989-01-25
Granted: 1996-10-04
Abstract: A detachable opening and closing structure for stool seat and cover, wherein a resistance mechanism is not actuated when opening the seat and cover, but turns them quickly within a predetermined range of angles and then operates slowly for closing, and an erection mechanism applicable preferably to such mechanism is provided further thereto. Accordingly, when opening the seat and cover, these can be handled lightly as in the case of normal seat and cover, and closed within a short time despite being loaded with a resistance. Shocks from the opening and closing mechanism to the stool side are relieved, thus preventing members from damage, loose work and the like. Further, it is not necessary to provide the erection mechanism separately from the opening and closing mechanism, a structure can be compact, the mechanism is detachable easily to simplify the maintenance work, and sanitary use is ensured.
Patent KR-930005068-B1 (KR)
Inventor: EGUCHI TOYOAKI
IPC: C21D9/52
Filed: 1989-06-13
Granted: 1993-06-15
Abstract: 내용 없음.
Patent KR-970009007-B1 (KR)
Inventor: WIESE JURGEN
IPC: C01G49/08
Filed: 1989-06-23
Granted: 1997-06-03
Abstract: 내용없음.
Patent KR-930001089-B1 (KR)
Inventor: NAKAMURA TSUTOMU
IPC: B23P5/00
Filed: 1989-10-13
Granted: 1993-02-15
Abstract: 내용 없음.