baber/WOPTO huggingface dataset:
Patent ES-2546686-B1 (ES)
Title: Condensador trifásico cilíndrico conectado en triángulo
Inventor: NUNEZ- BARRANCO PATINO CÉSAR
IPC: H01G9/04
Filed: 2015-03-26
Granted: 2016-09-26
Abstract: Condensador trifásico cilíndrico conectado en triángulo.#Condensador trifásico que comprende tres condensadores de geometría cilíndrica en forma de anillo anular dispuestos de manera concéntrica separados cada uno respecto del contiguo por un material aislante, existiendo un condensador interior, uno intermedio, y uno exterior; sobre una de las caras del cilindro, los dos anillos anulares más interiores quedan conectados entre sí por medio de una capa conductiva, que pone al mismo potencial las armaduras correspondientes; sobre la otra cara del cilindro, los anillos anulares más exteriores quedan conectados entre sí mediante una capa conductiva, que pone al mismo potencial las armaduras correspondientes, y finalmente se dispone un conductor que une eléctricamente el anillo anular de cada una de las caras del cilindro que no están unidas eléctricamente con el resto.
Patent ES-2644171-B1 (ES)
Title: Sistema de bombeo de tinta para impresoras
Inventor: SERRATOSA JORDÀ RAMÓN
IPC: F04B43/073
Filed: 2016-05-27
Granted: 2018-07-30
Abstract: Sistema de bombeo de tinta para impresoras, que comprende una entrada (8) de tinta (1) y unos medios impulsores para enviar la tinta (1) por una salida (9), en donde los medios impulsores comprenden una bomba de diafragma (2), en combinación con una bomba volumétrica (3) con engranajes (13) para impulsar un fluido (4), mediante el cual se actúa la bomba de diafragma (2) que impulsa la tinta (1) desde la entrada (8) hasta la salida (9).
Patent HR-P20030168-B1 (HR)
Title: Method for simplifying the exchange of a sim card of subscribers of a digital mobile communications network
Inventor: REEMTSMA JAN-HINNERK
IPC: H04W8/26
Filed: 2003-03-07
Abstract: With the present method for simplifying the exchange of a SIM card of subscribers of a digital mobile communications network, the subscriber disposes of an old active SIM card and makes us of a new inactive SIM card in a mobile terminal. The invention provides that the proper activation of the new SIM card and deactivation of the old SIM are carried out while in dialog with subscribers via a migration server connected to the mobile communication network.
Patent JO-3107-B1 (JO)
Title: Process for preparing methyl {4,6-diamino-2-[1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl]pyrimidin-5-yl}methylcarbamate and its purification for use as pharmaceutically active compound
Inventor: DR FRANZ-JOSEF MAIS
Filed: 2010-11-25
Granted: 2017-09-20
Abstract: The present invention relates to a process for preparing methyl {4,6-diamino-2-[1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl]pyrimidin-5-yl}methylcarbamate of the formula (I) (I), and to a process for purifying the crude product of the compound of the formula (I) for use as pharmaceutically active compound, where, for purification, methyl {4,6-diamino-2-[1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl]pyrimidin-5-yl}methylcarbamate sulphinyldimethane (1:1), i.e. a compound of the formula (II), is isolated as intermediate or is generated as intermediate in this purification process, if appropriate present in a mixture.
Patent JO-2742-B1 (JO)
Title: Elliptical Anti-Rotational Dental Implant Fixture
Inventor: SALIH NAWAF SALIH AKOUR
Filed: 2011-09-20
Granted: 2014-03-15
Abstract: Abstract A new design of dental implant fixture is unveiled for use in connecting prosthesis to bone such as connecting an artificial tooth or dental bridge to jaws. A tongue and groove fitting of an elliptical cylindrical shape is provided between the abutment and the implant. This connection mean provides mechanical interlock which prevents relative rotation of the abutment and the implant after the two are mated. Screw anti-loosening pin is introduced to secure the abutment retaining screw and to secure itself from misplacement. The implant is equipped with helical groove that has three dimensional sharp cutting edges over the threaded body of the implant fixture. The unique shape of the groove allows smooth flow for the bone removed by the self-drilling and tapping process. This reduces the torque necessary for the self drilling and tapping process. Elliptical dental implant comprises implant fixture, abutment, retaining screw and screw anti-loosening pin. It is preferred that the invention components are made of titanium alloy.
Patent JO-3516-B1 (JO)
Title: Benzoimidazol-2-yl pyrimidine modulators of the histamine h4 receptor
Inventor: MAGALI B HICKEY
IPC: C07D401/14
Filed: 2014-03-06
Granted: 2020-07-05
Abstract: Benzoimidazol-2-yl pyrimidines, purification methods for the same, and pharmaceutical compositions and methods for the treatment of disease states, disorders, and conditions mediated by H4 receptor activity, including allergy, asthma, autoimmune diseases, and pruritus.
Patent KR-790000509-B1 (KR)
Title: Process for production of 3b(4'-oxo-a-l-rhamnosyl)-14b-hydroxy-bufa-4,20,22-trienolide
Inventor: HOEFKE W
Filed: 1975-07-23
Granted: 1979-05-29
Abstract: Title compd. useful in the treatment of heart insufficiency was prepd. Thus, formula(I; R=H, low alkyl, low alkoxy, R2=low alkoxy; R1, R2=H) was hydrolyzed with dild. acid or base using inactive org. solvents at room temp. or above to give 3β-(4'-oxo-&-L- rhammnosyl)-14-hydroxybufa-4, 20, 22-trienolide. The glycoside compd. obtained was useful as cardiotonics and its most effective dose was 0.125-2.0mg.
Patent KR-830000752-B1 (KR)
Title: 치환 헤테로싸이클 n-알칸올아민의 제조방법
IPC: C07D207/08
Filed: 1976-05-21
Granted: 1983-04-09
Abstract: 내용 없음.
Patent KR-810000352-B1 (KR)
Title: Apparatus for regneration activated carbon
Inventor: NUMASAKI KOUICH
IPC: F27B15/10
Filed: 1977-03-25
Granted: 1981-04-22
Abstract: Appts. for the regeneration of spent active carbon comprises a burner-heated furnace chamber with a vertical annular regeneration chamber the central space of which constitutes a dust for exhaust gases.  Spent carbon is fed by a screw feeder(2) on to a distributor(6) at the top of the regeneration chamber through which it descends to discharge via a table feeder at the base.  The regeneration chamber(5) is heated by the furnace(16) and by flue gases which enter the central duct(9) from the furnace; there are holes(8) in the outer walls(3) of the regeneration chamber(5) and downwardly inclined annular plates on the inner wall(4) induce mixing of the carbon.
Patent KR-810000896-B1 (KR)
Title: Process for manufacturing citric acid from olefins by fermentation
Inventor: SATO SEISUKE
IPC: C12P7/48
Filed: 1978-01-12
Granted: 1981-08-17
Abstract: Citric acid was produced by culturing Candida on a medium contg. olefins (C8-C40).  Thus, C. tropicalis was cultured aerobically at 30oC for 3 days in a medium contg. octadecene-1 10, NH4Cl 0.3, KH2PO4 0.05, MgSO47H2O 0.03%, FeSO47H2O 5, MnSO4H2O 0.06, ZnSO4H2O 5, biotin 50, and thiamine-HCl 100 mg/L.  The culture contained 59.5 g citric acid/L.
Patent KR-810000764-B1 (KR)
Title: Method of and means for coating both sides of travelling web
Inventor: BERRY K
Filed: 1978-03-17
Granted: 1981-07-02
Abstract: Appts. for puddle coating both sides of a travelling web (W) includes first and second horizontal rolls(5,8) providing a first nip and defining a first generally upwardly directed puddle(7) trough over the first nip.  A third horizontal roll (11) forms a second nip with the second roll, below the first nip and defines a second puddle(10) trough opening generally upwardly.  Means are provided for supplying puddle troughs with respective puddles of coating liquid.  The web is passed through the three roll arrangement in a manner such that one said is coated in the first puddle, and the other side coated in the other puddle.
Patent KR-820000631-B1 (KR)
Title: Ternary alloy of cu-zn-co coated metall wire
Inventor: KURASHIKE S
IPC: C25D3/56
Filed: 1978-12-13
Granted: 1982-04-19
Abstract: This invention is the steel wire coated by ternary alloy of Cu-Zn-Co contained cobalt of 0.1-50 wt %.  The precipitation line of phase moves to the direction decreasing the component ratio of Cu to Zn by adding cobalt to brass like the equilibrium phase diagram of Cu-Zn-Co and the drawability of this alloy is raised by inhibiting precipitations of β phase due to that without decreasing the adherent force to rubber.
Patent KR-810001792-B1 (KR)
Title: Phenolic resin-polyisocyanate binders
Inventor: GARDIKES J
IPC: C08G18/54
Filed: 1979-03-20
Granted: 1981-11-14
Abstract: Benzyl ether linkage-contg. phenolic resin 35-75% aq. emulsions are combined with polyisocyanates and tertiary amine catalysts to provide cold-box foundry resing with low moisture content.  Thus, a PhOH-HCHO resin was prepd. from 634.24 parts phenol and 364.5 parts 91% paraformaldehyae and emulsified(60.00 parts) with water 39.40, ethoxylated cellulose(cellosize QP 15000) 0.60, and naphthalenesulfonate condensate(Tamol SN) 0.75 part.
Patent KR-850000409-B1 (KR)
Title: Process for the purification of water containing grease and soil using a heavy solvent and apparatus for its implementation
Inventor: LEMAN BERNARD
IPC: C02F1/68
Filed: 1979-05-31
Granted: 1985-03-26
Abstract: Waste water containing grease and soil is purified by mixing it with a solvent having a higher density thant water, and separating the prepared emulsion. The mixture containing water-solvent emulsion, grease, and soil is dewatered to obtain the dehydrated solvent. Grease is recovered from the clean solvent from which the soil is separated and dried by means of azeotropic distillation in the presence of water.
Patent KR-830000721-B1 (KR)
Title: 디스프레이 장치
IPC: G09F9/33
Filed: 1979-12-01
Granted: 1983-04-06
Abstract: 내용 없음.
Patent KR-820001483-B1 (KR)
Title: Method for manufacturing surface of absorption for solar collector
Inventor: ISIBASI TOSIHIRO
Filed: 1980-01-18
Granted: 1982-08-23
Abstract: This invention relates to a selective absorption surface of a solar collector in which a coating layer consisting of the predetermined composition of metal oxide is tightly adhered to a substrate having the mirror-like surface in the predetermined thickness.  The composition of metal oxide consists of 0.001-0.15 % C, 0.005-3.00 % Si, 0.005-10.0 % Mn, 11.0-30% Cr, 0.005-22.0 % Ni, optionally 0.75-5.00 % Mo and the balance being Fe.  The metal plate is chemically oxidized in an acidic bath consisting of 150-800 g/l of sulfuric acid at the temp. of 50 ≰C to the boiling point, a dipping time of 3-40 min. to form the oxide film at the thickness of 500 to 200∦.
Patent KR-810000687-B1 (KR)
Title: Process for heterocyclic compound
Inventor: KANG DOAG GOO
IPC: C07D333/16
Filed: 1980-04-03
Granted: 1981-06-22
Abstract: Heterocyclic compds. I(A = II; R3 = hydrogen, C1-4 lower alkyl, C2-4 lower alkenyl, aralkyl or C2-4 lower alkenyl, aralkyl or C1-4 loweralkyloxy(or thio) group; Y = oxygen or sulfur; Z = O, S=N-CN or =CR4D; R4 = H or C1-4 lower alkyl; D = CN or nitro group; n = 0-3; B = III; R1 = R2 = R3; X = oxygen or sulfur; Hal = halogen) were prepd. by the reaction of compd IV and V.  These compds. have histamine: H-2 receptor antagonist activity.
Patent KR-850000454-B1 (KR)
Inventor: CRONIN DENNIS CALLAHAN
IPC: B30B9/24
Filed: 1981-01-24
Granted: 1985-04-05
Abstract: 내용 없음.
Patent KR-850000083-B1 (KR)
Title: Electron-tube
Inventor: OUGI HIROSHI
IPC: H01J5/02
Filed: 1981-02-20
Granted: 1985-02-18
Abstract: Electron tube has a glass bulb with a stem of glass carrying an electron gun assembly sealed to the bulb so that the gun assembly is accommodated in the bulb. The seal is effected through a metallic ring of material having a thermal expansion coefficient close to that of the glass of the bulb and stem. Heating is achieved during sealing by the induction from coil to fuse the glass coating on ring to the stem and bulb. Subsequently ohmic heating coil is used to anneal the seal. Used particularly in the mfr. of a colour cathode ray tube.
Patent KR-850000137-B1 (KR)
Title: Phosphor screen manufacturing process of color t.v.
Inventor: MIWAJAGI AGIRA
IPC: H01J9/227
Filed: 1981-05-06
Granted: 1985-02-27
Abstract: Manufg. device for fluorescent screen of color brown tube comprises a supply system of fluorescent slurry to the brown tube, a supplement system of fluorescent slurry, and control system of sp. gr. of fluorescent slurry. In order for sp. gr. of suspension of fluorescent slurry to keep constant, the sp. gr. is measured by a detecting device in the supplying line and correction soln. is supplied. The electric signal from the detecting device is input to a controlling device. The controlling device supplies the correction soln. by a electro-magnetic valve.
Patent KR-850000003-B1 (KR)
Title: Absorbent structure having gradient densities
Inventor: HOLTMAN DENNIS CHARLES
IPC: A61F13/15
Filed: 1981-08-19
Granted: 1985-02-08
Abstract: Rectangular absorbent material esp. for sanitary pads and napkins, is formed to have an increasing density gradient from its center towards each end for improved wicking of liq. towards the pad ends despite uniform transverse density at any point along the pad length. Specifically, the density gradient is formed by lengthwise compaction lines, or by differential compression along the pad length, or by paper-like densifying skin on the pads rear face.
Patent KR-880001810-B1 (KR)
Title: Povidone irradiation
Inventor: BUNTING THOMAS G
IPC: A61L2/08
Filed: 1983-05-27
Granted: 1988-09-19
Abstract: Polyvinyl pyrrolidone (povidone) is sterilised by irradiation with γ-rays in the presence of I2, iodide ions, and pref. iodate ions, used in an amt. such as to prevent povidone decompsn. Povidone-I2  solns. are sterilised by irradiation with   γ-rays in the presence of iodide ions, to prevent the decompns. or the gelation of the povidone, and the loss of available I2.
Patent KR-920006113-B1 (KR)
Inventor: SEOROK THOMAS P
IPC: F23M5/00
Filed: 1984-08-04
Granted: 1992-07-27
Abstract: 내용 없음.
Patent KR-880002624-B1 (KR)
Title: Antidepressant 1,2,4 triazolone compounds and process for the preparation thereof
Inventor: GAMMANS RICHARD E
IPC: C07D403/06
Filed: 1984-09-29
Granted: 1988-12-07
Abstract: 2-[3-[4-(3-halophenyl)-1-piperatinyl propyl -5-(1hydroxyethyl)-2,4- dihydro-4-phenoxyalkyl-3H-1,2,4-triazol-3-ones of formula (I) or their pharmaceutically acceptable salts are prepd..  In the formula (I), Y is halogen or CF3; Z is H or (II) [R'=H, halogen, lower alkoxy or CF3 ; n is 2-4. (I) are useful as selective antidepressants.
Patent KR-920001620-B1 (KR)
Inventor: AHAGON ASAHIRO
IPC: C08K5/00
Filed: 1984-11-19
Granted: 1992-02-21
Abstract: 내용 없음.
Patent KR-870001760-B1 (KR)
Title: Borosilicate glass composition
Inventor: HORMADALY JACOB
IPC: C03C3/064
Filed: 1984-12-18
Granted: 1987-10-06
Abstract: Bi, Cd and Pb-free glass comprises(in mole %); (I) 50-95 pref. 65-75; and (II) 50-15 pref. 35-25, where (I) consists of B2O3 25-50, SiO2 15-40, and SnO2 0.1-5; and (II) consists of BaO 10-30, Mg 0-12 and NiO 1-10.  Mole ratio BwO3/SiO2=0.8 or above and (B2O3+SiO2)=5 or above.  As a binder in thick film resistor compsns., specifically a compsn. of (in wt.%) Sn oxide pyrochlorebased material 95-55 and above glass 5-45 is used.
Patent KR-900004948-B1 (KR)
Title: Under/side line pattern generating device
Inventor: AOKI HIROYUKI
IPC: G06T11/00
Filed: 1985-01-09
Granted: 1990-07-12
Abstract: An under/side line generator in a pattern conversion mechanism for dot-interpolating a character pattern having a predetermined dot matrix form expressed by x and y coordinates at a designated angle along the main scanning or subscanning direction so as to obtain a rotated or inclined modified character pattern, comprises memory means (31,32) for storing the dot number data corresponding to the length along the main scanning or subscanning direction, and an expansion means (23) for expanding an under/side line pattern corresponding to the modified charater pattern in accordance with memory data.
Patent KR-910002924-B1 (KR)
Inventor: TSUNEO TSUBAKIMOTO
IPC: G02F1/1339
Filed: 1985-03-23
Granted: 1991-05-10
Abstract: 내용 없음.
Patent KR-930009219-B1 (KR)
Inventor: SHIRAI HIROSHI
IPC: G08G1/0969
Filed: 1985-06-07
Granted: 1993-09-24
Abstract: 내용 없음.
Patent KR-850001838-B1 (KR)
Title: Manufacturing method of fly baek trans
Inventor: TAJIMA TESSUO
IPC: H01B3/42
Filed: 1985-07-29
Granted: 1985-12-26
Abstract: The fly back trans composed of a bobbin and case is insulated with a thermosetting resin composition. The bobbin and case are molded with an unsatd. polyester resin adhesive and thermoplastic polymer resin. The thermosetting resin composition was unsatd. polymer resin composition containing organic peroxide and a hardening agent. With this method, the adhesive property of the unsatd. polyester resin adhesive is improved.
Patent KR-900005488-B1 (KR)
Title: Lcd elements
Inventor: HASEGAWA SINZI
IPC: G02F1/1333
Filed: 1985-12-04
Granted: 1990-07-30
Abstract: The liquid crystal display (LCD) device e.g. for (T.D.M.) operation includes the Y strip-line electrodes (signal electrodes) (33) and X strip-line electodes (scan electrodes) (34) formed on the upper and lower substrates (not shown). The image elements (pixels) i.e. liquid crystal zones on the intersection points of the X- and Y-electrodes are switched 'on' or 'off' in order to indicate letters. The electrode surfaces and the free substrate surfaces are provided with orienting layers so that a helical structure having a given twist or transposition of over 90 deg. in the direction of thickness is formed, specif. 96 to 108 deg. The angle of intersection of the absorption axes of the polarisation plates on the top and bottom substare is 63 to 73 deg..
Patent KR-900001095-B1 (KR)
Inventor: SAITO HIROSHI
IPC: C22B1/24
Filed: 1985-04-12
Granted: 1990-02-26
Abstract: 내용 없음.
Patent KR-930005052-B1 (KR)
Inventor: DUFRESNE JOEL R
IPC: A61N1/36
Filed: 1986-06-16
Granted: 1993-06-15
Abstract: 내용 없음.
Patent KR-890003073-B1 (KR)
Title: Paper feeding device for printer
Inventor: TAJIMA AKIO
IPC: B41J13/02
Filed: 1986-10-29
Granted: 1989-08-21
Abstract: The printer has a main feed roller (1) that has a cam (31) with a slotted track that guides a follower that is fixed to the end of a linkage (10).  When the manual adjuster on the end of the feed roller (1) is rotated the cam causes the linkage to operate a lever (6) that carries a paper contact roller which is swung clear of the paper.  A second lever (16) is also moved by the cam (31) to move a second roller clear of the paper.
Patent KR-890003987-B1 (KR)
Title: Signal transmission circuit & method of automatic storehouse system control device
Inventor: SON TAE-MOON
IPC: C08C19/16
Filed: 1986-12-22
Granted: 1989-10-14
Abstract: The transmitter comprising line drivers (40,50) driving the communication data and a light modem connector (90) for controlling the crane utilizing the light modulated signals of the line driver is added to an intelligent remote control system including a cpu (10) for processing the input data utilizing the equipped program and for transmitting the processed data, a buffer (20) for buffering the transmitting-receiving baud rate and data, and an address decoding, and programmable communiction interface circuit (30) having RS-232C for series-parallel conversion of the transmitting control data and communicating data according to handshake signals.
Patent KR-910000291-B1 (KR)
Inventor: KOBAYASHI SEIJI
IPC: B29C65/04
Filed: 1987-03-27
Granted: 1991-01-24
Abstract: 내용 없음.
Patent KR-950003613-B1 (KR)
Inventor: OGAWA TOMOYA
IPC: C07H15/10
Filed: 1987-04-10
Granted: 1995-04-17
Abstract: 내용 없음.
Patent KR-900000547-B1 (KR)
Title: Pharmaceutical formation for using animal
Inventor: KIM MU-GON
IPC: A61K47/00
Filed: 1987-05-14
Granted: 1990-01-31
Abstract: For the composition of medicine for animal use, a mixture containing 1g Na-propionic acid, 50g gelatin, and 900g lactose is dissolved in water, boiled at 150-200 ≰C for evaporation of water, cooled to 80-100 ≰C, then mixed with 20g methionine, homogenized, cooled again to 50-80 ≰C, treated with a proper amount of ethyl vanillin, mixed with 29g lactose, molded into blocks of 10-50Cm dia. to give a final composition.
Patent KR-900001121-B1 (KR)
Title: Guide holder device of keyboard switch
Inventor: LEE JONG-HO
IPC: G06F3/02
Filed: 1987-08-08
Granted: 1990-02-27
Abstract: A guide holder device of a keyboard switch (2) includes an upper projection (3) and a pair of lower projections (4,4') for receiving a guide arm (7) into a recess (5) formed between them. The guide holder device is integrally formed with the keyboard switch so as to reduce the assembling process of the guide holder. A pair of guide stems (8,9) are prepared apart at both sides of the keyboard switch located beneath a key top (6), and holds the both ends of the guide arm.
Patent KR-900000353-B1 (KR)
Title: Electron gun
Inventor: KO NAM-JE
IPC: H01J29/48
Filed: 1987-08-21
Granted: 1990-01-25
Abstract: The gun has a specially designed main lens forming electrodes for focusing electron beams into the certain point of a screen.  A bottom unit (30) of shielding cup (32) having a field controller (11) for focusing multi electron beams into one point of a screen is caved in the shielding cup (32) with T shape.  A part of the bottom unit (T') is connected to the open terminal plunger (9) of a fourth grid electrode (4).
Patent KR-920007980-B1 (KR)
Inventor: SASAKI SESUO
IPC: H01G4/35
Filed: 1987-09-11
Granted: 1992-09-19
Abstract: 내용 없음.
Patent KR-950015052-B1 (KR)
Title: Delivery vehicles with amphiphile-associated active ingredient
Inventor: CRISPIN GEORGE STUET ELEY
IPC: A61K9/50
Filed: 1987-12-15
Granted: 1995-12-21
Abstract: Delivery vehicles comprising an outer biocompatible encapsulating layer, an inner amphiphilic active ingredient-associated layer and an active ingredient are described. The delivery vehicles are biocompatible and are capable of solubilizing the active ingredient for in vivo delivery to bodily tissue or other bodily systems. Uses include nuclear magnetic resonance imaging and therapeutic drug delivery.
Patent KR-900006454-B1 (KR)
Title: Apparatus for production of silicon nihide powder
Inventor: LEE KANG-HO
IPC: C01B21/068
Filed: 1987-12-28
Granted: 1990-08-31
Abstract: An appts. for producing a silicon nitride powder by reacting a mixt. of silicon dioxide powder and carbon powder with a nitrogen gas in a fluid reactor includes a graphite fluid reaction pipe forming a reaction member comprising a main body and a cover, a graphite shaft turning the reaction pipe round and an alumina pipe having a larger inside diameter than an outside diameter of the reaction pipe.
Patent KR-910006383-B1 (KR)
Title: Auto pen change apparatus of plotter
Inventor: PARK HYUN-SOO
IPC: B43L13/02
Filed: 1987-12-30
Granted: 1991-08-21
Abstract: a  carriage shal driving motor (17) mounted to a carriage shaft support  (11); a solenoid (12) vertically moved in the support (11);  a  solenoid (16) having a pen support (13),  a  pen  holder  (14)  and  a  pen cap- removal section (15) mounted on the side of the solenoid (12); a cylindericap section (22) rotated by the driving motor (17)  and a gear (18).
Patent KR-910002844-B1 (KR)
Inventor: OCHIAI IZUMI
IPC: B21D53/08
Filed: 1988-04-07
Granted: 1991-05-06
Abstract: 내용 없음.