baber/WOPTO huggingface dataset:
Patent KR-820000843-B1 (KR)
Title: Oxygen absorption matter
Inventor: FUDASHEI K
IPC: B01J20/22
Filed: 1978-10-18
Granted: 1982-05-17
Abstract: Aq. and(or) alc. solns. of ascorbic or erythorbic acid, their salts, pyrocatechol, resorcinol, and Fe(II) and Fe(III) sulfates, chlorides, and nitrates are used to impregnate porous materials, such as pellets, laminated plates, or sheets, and are sealed in a gas-permeable, heat-sealable, waterproof film bag. The film used was made of TK-Z, and the compn. was used esp. for food storage. Thus, 1g mixt. of Na ascorbate 100, FeSO47H2O 20, and H2O 120 parts was used to impregnate 0.8g(2.5x2.5cm) filter paper and heat-sealed in a 4x4cm TK-Z film bag.
Patent KR-820000871-B1 (KR)
Title: Control ciruit
Inventor: DAKAO M
IPC: H03J1/06
Filed: 1979-05-25
Granted: 1982-05-17
Abstract: The control circuit comprises a variable oscillator (25) from which generated oscillating frequency f1-f15 are supplied to the frequency discriminating circuit (5) through the mixer (26) by manual control signal. The oscillator and the frequency discriminating circuit are made of IC. and the variable time-constant circuit is attached externally. The circuit can be miniaturized through reducing the number of terminals and cut down cost.
Patent KR-840000732-B1 (KR)
Title: Fluid-cooled mushroom value housing
Inventor: POLLET JEAN-PIERRE
IPC: F02F1/42
Filed: 1980-01-04
Granted: 1984-05-24
Abstract: An internal combustion engine having two exhaust valves per cylinder has a sleeve(1) for each valve.  The sleeve has a gas passage(4) with a lateral outlet and an axial opening with a valve seat(7).  Above this the sleeve forms a guide(2) for the valve stem.  This section has an annular chamber(9) around the valve stem to circulate the cooling fluid.  The chamber is divided into flow and return sections by longitudinal partitions.  The sleeve is made in two parts joined by a connector plate(17), which allows the lateral gas opening to be fixed in either of two positions relative to the upper guide(2).
Patent KR-830001878-B1 (KR)
Title: Device for mounting parts on printed circuit boards
Inventor: DULL HELMUT
IPC: B23P19/00
Filed: 1980-09-05
Granted: 1983-09-15
Abstract: A device and a method of automatically mounting plateshaped chips on printed circuit boards, the chips first being aligned and positioned with respect to each other before they are glued onto the printed circuit board, after which the whole assembly of parts is soldered down.
Patent KR-810000356-B1 (KR)
Title: Preparation for pharmacologically active compounds
Inventor: TLITHEROW J
IPC: A61K31/34
Filed: 1981-01-29
Granted: 1981-04-22
Abstract: Title compds. (I; R1 and R2 and H; R3 = H, lower alkyl or alkoxyalkyl; X = S; Y= =S, =O, =NR5 or =CHR6; Alk = C1-6 alkylene; R5 = H, nitro, cyano, lower alkyl, aryl, alkylsulfonyl or arylsulfony; R6 = arylsulfonyl or alkylsulfonyl; n = 1;m = 2-4) were prepd. by the reaction of compd. IV and II(R1 and R2 are H; R7 = H) or III.  Thus, 0.5 g 5-[5-dimethylamino)methyl-2-furanyl  pentaneamine and 0.25 g methylisothiocyanate were stirred for 24 hr in acetonitrile to give N-[5-[5-(dimethylamino)methyl-2-furanyl pentyl -N'-methylthiourea.
Patent KR-850000702-B1 (KR)
Title: A process for producing thermosetting prepolymer from polyfunctional maleimide and bismaleimide
Inventor: TAKAHASHI AKIO
IPC: B32B27/34
Filed: 1981-02-13
Granted: 1985-05-15
Abstract: Prepolymer of thermosetting maleimide is prepared from multivalence maleimide(A), bismaleimide(B), diamine(C) of which the chemical formula is H2N-R2-NH2, and an epoxy compd.(D) by reaction the compd. for 5-240 min. at 50-145≰C. The composition of (A) in the mixture of (A) and (B) is 3-80 wt.%; mole ratio of (A) + (B) to (C) = 1:2-1:0.1; and composition of (D) in the mixture of total components is 5-80 wt.% when(D) is not used, the reaction temperature is 70-180≰C.
Patent KR-840002276-B1 (KR)
Title: Font data electrical transmission device
Inventor: FUJIWARA DESUO
IPC: G06K15/10
Filed: 1981-05-16
Granted: 1984-12-14
Abstract: A transmission method for font data can detect omitted data or compensate for it and expand its capacity according to the increase of transmitted data. The font data is divided into row or column dots with constant numbers and is transmitted with added signal points that show the start and end of the font data. The signal point coincides with the address counter and in transmitted in a divided state.
Patent KR-850001591-B1 (KR)
Title: Lighting system
Inventor: HANLET JACQUES M
IPC: H01J/
Filed: 1981-06-19
Granted: 1985-10-19
Abstract: This system comprises an electron-emitting cathode sealed to a cathode sleeve and to the olefin. A cathode chamber is filled with gas at a predetermined pressure. A first anode inside the cathode provides the heating effect for cathode emission, as a second external anode causes the electrons to accelerate away from the cathode. The whole assembly is enclosed in a sealed transparent envelope coated internally with fluorescent material. Ultraviolet light produced by gas ionization is converted by the coating into visible light. The light source has high efficiency and can operate from a relatively low voltage supply, e.g. 110V.
Patent KR-820002345-B1 (KR)
Title: Process for preparing 2,2-(ethylene diamino)-dibutanol-diisoniazid-methane sulfonate
Inventor: PARK SANG WOO
IPC: A61P31/06
Filed: 1981-07-07
Granted: 1982-12-23
Abstract: The d(+)2,2'-(ethylene diamino)-di-butanol-di-isoniazid-methan sulfonate (I), useful as antituberculosis drug, was prepd.  Thus, 20.4g ethambutol and 28.6g chloro-methane sulfonate in 180ml abs.  MeOH were heated for 30min, and then 27.4g isniazid in 70 ml abs.  MeOH was dropped into the reactant and heated for 20min.  After cooling the reactant, 30ml cyclohexane was added to give 47.4g I (m.p., 121-122.5oC, yield 71%).
Patent KR-880000603-B1 (KR)
Title: Color television set
Inventor: NAIMPALLY SAIPRASAD V
IPC: H04N5/44
Filed: 1981-11-26
Granted: 1988-04-16
Abstract: The receiver also includes an automatic kinescope beam current limiter, kinescope driver stages, and a source of reference bias voltage to which video signals amplified by the kinescope driver stages are normally referenced, coupled in common to the kinescope driver stages.  During channel changing intervals, the blanking circuit modifies the reference voltage with a given blanking response time so that the driver stages and kinescope driver stages.  During channel changing intervals, the blanking circuit modifies the reference voltage with a given blanking response times so that the driver stages and kniescope are blanked.
Patent KR-860001588-B1 (KR)
Title: Process for the production of human epidermal growth factor
Inventor: SUKIMODO KANAME
IPC: A61K35/24
Filed: 1981-12-02
Granted: 1986-10-13
Abstract: Prodn. of human epidermal growth factor(Urogastrone) comprises multiplying appropriate human cells, then allowing them to release urogastrone. The cells can be (1) transplanted into a warm -blooded animal; (2) suspended in a device which provides the cells with nutrient fluid from such an animal, or (3) cultured in synthetic nutrient media. Hydridoma cells were obtd. by cellular fusion of human lymphoblast line(Namalwa, BALL-1 or JBL) with human cells capable of producing urogastrone, e.g. sub-maxillary gland tumor cells or lung or bladder carcinoma cells. Urogastrone has antisecretory and antiulcer activities and stimulates the growth of various tissues.
Patent KR-840000414-B1 (KR)
Title: Reproducing method of the cylinder for the rock drill
Inventor: KIM WUK-HYON
IPC: B23P6/02
Filed: 1982-08-03
Granted: 1984-04-02
Abstract: A cylinder(1) for a rock drill, which has been discarded because of wear on the inside diameter, is preheated to 600 - 700oC and the inner wall(3) of the cylinder(1) is electricwelded to the length distance or the slanting distance using an  electric-welding rod containing 0.1% C, 0.35% Mn, 0.19% Si, 0.029% P and 0.023% S.  The deposited metal(4) of 3 mm thickness is worked on the lathe, and is hardened and tempered at a temp. of 1200oC for two hours.
Patent KR-920010007-B1 (KR)
Inventor: OVSHINSKY STANFORD R
IPC: C22C23/00
Filed: 1983-04-27
Granted: 1992-11-10
Abstract: 내용 없음.
Patent KR-900000287-B1 (KR)
Title: Microscope time focus control mechanism
Inventor: CLARK JAMES A
IPC: G02B21/26
Filed: 1983-06-11
Granted: 1990-01-24
Abstract: The mechanism for adjusting the distance between the objective lens and the specimen table of a microscope includes a coarse and fine adjusting mechanism, which has fine adjusting knobs (32,34) mounted at the ends of an inner spindle (26) and coarse adjusting knobs (36,38) mounted on a hollow spindle (30) enclosing the first one.  To change from coarse to fine adjustment, a tilting arm (104) is swung over to move a sleeve (93) behind the knobs at one end of the spindles to produce movement eccentric to the hollow spindle. Rotation of the sleeve by the arm causes relative movement between a curved slot (100) and a fixed pin (102) passing through it, as the eccentric action takes place.
Patent KR-870000622-B1 (KR)
Title: Process for preparing 1,3,4,6,7,11b-hexahydro-7-aryl-2h-pyrazino(2,1-alpha)isoquinolines
Inventor: GRIFFITH RONALD C
IPC: C07D471/04
Filed: 1983-10-18
Granted: 1987-03-26
Abstract: 1,3,4,6,7,11b-hexahydro-7-aryl-2H-pyrazino(2,1-alpha)isoquinoline (I) [R1=hydrogen, lower alkyl, alkanoyl, aryl; R2,R3= hydrogen, halogen, hydroxy, acyloxy, nitro, amino, aminoalkyl, alkoxy, acyl, cyano, alkylamino  is prepd. for use as an antihistamine. Compd. (II) [Z=hydrogen, lower alkyl  is reacted with oxalate to give diamide and then the diamide is reduced to give the comps. (I). In case that R1 of compd. (I) is lower alkyl, compd. (I) can be dealkylated.
Patent KR-870001415-B1 (KR)
Title: Fire protective intumescent mastic composition
Inventor: WARD THOMAS A
IPC: C09D5/18
Filed: 1984-10-24
Granted: 1987-07-30
Abstract: (a) an epoxy resin; (b) a curing agent for the epoxy resin; and (C) an additive component comprising a mixt. to provide a source of phosphorus; zinc; boron; and expansion gas on thermal decompsn., the compsn. being capable of forming a carbonaceous char on exposure to heat or flame.  A process for protecting a substrate from fire and excessive heat comprisiong: (I) applying the intumescent compsn. to the surface; and (II) overlaying the compsn. with a mesh member.  The compsn. is esp. useful in the protection of structural steel members in buildings.
Patent KR-870001008-B1 (KR)
Title: One way turning method
Inventor: HAN SUN-YUN
IPC: F16H29/00
Filed: 1985-01-09
Granted: 1987-05-18
Abstract: One pair of spur gears(2,2') are fixed on the shaft(1,1') and jointed with each other.  Two gears(3.3'), smaller than the spur gears, which have one way turning clutch(4), are inserted in the shaft(1,1') and fixed.  The outer race of the clutch is fixed in the inner circumference.  Another spur gear(6) is fixed on the output shaft(5) and jointed with the spur gears(3,3').  One or more than one of the shafts(1,1') become input shafts.  One way turning output power can be obtained regardless of the input turning direction by using five spur gears and two clutches.
Patent KR-900008564-B1 (KR)
Inventor: HAEFLINGER WALTER
IPC: C07D457/12
Filed: 1985-01-25
Granted: 1990-11-24
Abstract: 내용 없음.
Patent KR-860001941-B1 (KR)
Title: Method of and apparatus for manufacturing slide fastener with separable end stop
Inventor: KUSE KAZUKI
IPC: A44B19/60
Filed: 1985-05-08
Granted: 1986-11-01
Abstract: Method and appts. for mfg. a slide fastener with a separable end stop, comprises sepg. the intermeshed fastener elements of a stringer having spaced gaps, and stopping advance of the stringer with a gap located at an injection moulding station, where upper stops and separable bottom end stop parts are moulded onto the stringer tapes at appropriate ends of the gap. Prior to the moulding stop portions of tape alongside the gap are depressed, within the moulding station, to move inwardly respective fastener elements until their ends abut locating stops and the tapes are positioned for moulding the stops at the gap ends.
Patent KR-910003516-B1 (KR)
Title: Process for the leaching of sulphideds containing zinc and iron
Inventor: ANDRE JEAN A
IPC: C01G9/00
Filed: 1985-05-28
Granted: 1991-06-03
Abstract: The extraction of zinc and copper and the recovery of precious metals from sulphurous zinciferous materials, also containing iron, becomes possible when these are treated by leaching under pressure in two stages, by judiciously controlling the relative quantities of sulphurous materials and acid.
Patent KR-880000412-B1 (KR)
Title: A blackboard
Inventor: ARAKKI SEIJI
IPC: B43L1/04
Filed: 1985-05-31
Granted: 1988-03-22
Abstract: The copy board has a writing medium mounted on a housing and movable by a driving roller.  The writing medium is equipped with screens composed of an opaque parent sheet trained around a supporting roller and the driving roller, and a transparent sheet removable with respect to the parent sheet.  A readout sensor may be present for scaling down or combining images on the screen writing tool (e.g. a felt pen) and a lens.  The picture images may be recordcable on a recording paper.  The writing medium may be endless.
Patent KR-900001115-B1 (KR)
Title: Video signal processing apparatus
Inventor: MATSUMOTO TOKIKAZU
IPC: H04N5/21
Filed: 1985-12-06
Granted: 1990-02-26
Abstract: The appts. includes a 1 H delay circuit for delaying a luminance signal of the PAL system by one horizontal synchronising period.  An operational circuit allows an output signal of the delay circuit to pass through it when a difference between levels of the luminance signal and the output signal of the delay circuit is large, and outputs a sum signal when the difference is small. The appts. also includes a 2 H comb filter that passes a chrominance signal of the PAL system.  An adder circuit combines output signals of the operational circuit and filter to obtain a video signal.
Patent KR-940003198-B1 (KR)
Title: Coard convert apparatus
Inventor: YAMAUCHI SHINKO
IPC: H03M7/30
Filed: 1986-01-27
Granted: 1994-04-15
Abstract: A binary code processor for processing binary codes which represent at least first and second types of information in different ranges of value comprises a memory (1) for storing the binary codes, a discriminator (3) for generating an identification code to distinguish the first and second information data from the memory (1), a subtractor (4) for compressing the range of value of the binary code in accordance with said identification code, a converter (6) for converting the compressed binary code and the identification code to decimal digital codes in accordance with the identification code, and a further memory (7) for storing the decimal binary codes.
Patent KR-900000281-B1 (KR)
Title: Process for treating metal surface
Inventor: AYUKAWA NOBUHIRO
IPC: C23C22/04
Filed: 1986-05-20
Granted: 1990-01-24
Abstract: Chromate treating is improved by contacting a metal surface with a chromating soln. comprising a chromic acid ingrediant, a halocarbon solvent and an alcohol solubilizing agent, and opt. a stabiliser and/ or reaction promotor.  The treating metal is then allowed to set in an atmosphere free from any ingredient of the chromating soln. for at least 30sec., then washed with a liquid and/or vapor of a halocarbon or halocarbon/alcohol, and dried. Setting is preferred in air at ambient or elevated temp., pref. a flow of air at 20-50 ≰C for 1-10 min.  Amount of Cr acid taken up on the metal surface can be controlled and the appearance of the product. is good.
Patent KR-880000546-B1 (KR)
Title: Making method of double face woolen type woven fabrics
Inventor: LEE SUNG-JIN
IPC: D04B1/02
Filed: 1986-06-09
Granted: 1988-04-13
Abstract: A patterned woven fabric was manufactured by weaving thick weft yarns which can be napped easily and have diffecolor from each other and fine warp yarns which was difficult to be napped for surface and back of fabric.  The ribs were formed among the textile fabric with special fabric structure which can depress the napping by using jacquare loom.
Patent KR-910006597-B1 (KR)
Inventor: YADOO DETSUO
IPC: B66B7/04
Filed: 1986-06-12
Granted: 1991-08-29
Abstract: 내용 없음.
Patent KR-930009739-B1 (KR)
Inventor: TOYOTA KIYOSHI
IPC: G06K7/015
Filed: 1985-12-05
Granted: 1993-10-09
Abstract: 내용 없음.
Patent KR-910002242-B1 (KR)
Title: A casing particularly a junction - box casing for tele communications engineering
Inventor: TIBLE CHRISTAR
IPC: H05K5/00
Filed: 1987-06-22
Granted: 1991-04-08
Abstract: The invention relates to a casing, particularly a junction box casing (1) for telecommunications engineering, consisting of a box-shaped base (24), a cover (9) to close this, and a packing ring (14). According to the invention, upper and lower guide elements (2, 25) are provided, each of which consist of a pin (8, 13) on the inner sides of the side walls (27) of the cover (9) and of a pin guide (36, 37) on the outer walls (26) of the base (24). The pin guides (36, 37) are inclined at an acute angle to the base surface (28) of the base (24) and are directed toward the rear wall (30) of the base (24).
Patent KR-950009096-B1 (KR)
Title: Pharmaceufical composition containing taurolidine or taurultam
Inventor: PFIRRMANN ROLF W
IPC: A61K31/54
Filed: 1987-07-16
Granted: 1995-08-14
Abstract: An aqueous solution containing a bacterially effective concentration of taurolidine and/or taurultam together with a parenterally acceptable polyol. The aqueous solution is particularly suitable for parenteral administration.
Patent KR-960002567-B1 (KR)
Inventor: SATO MOTOHARU
IPC: F25B41/06
Filed: 1987-07-23
Granted: 1996-02-22
Abstract: 내용 없음.
Patent KR-950014570-B1 (KR)
Inventor: SPRINGER HARTMUT
IPC: C09B62/503
Filed: 1987-08-12
Granted: 1995-12-05
Abstract: 내용 없음.
Patent KR-910003793-B1 (KR)
Title: Thermal roller fixing apparatus
Inventor: KIM JAE-WAN
IPC: G03G15/20
Filed: 1988-01-15
Granted: 1991-06-12
Abstract: The  thermal  roller  fixing  apparatus  fixs  a  picture  on recording paper (2)  passing between a thermal  roller  (1)  of  a plain roller shape and a press  roller  (3).  The  thermal  roller fixing apparatus comprises two elastic rollers (4a) tapered in  an angle to the roller (1) in symmetry to be pressingly engaged  with an inverse crown shape guide roller (4) and a guide plate (5)  for guiding the recording paper (2) between the thermal roller (1) and the guide roller (4) to the nip portion.
Patent KR-910008582-B1 (KR)
Inventor: UEMURA KAZUOKI
IPC: B01F33/40
Filed: 1988-07-15
Granted: 1991-10-19
Abstract: 내용 없음.
Patent KR-900005823-B1 (KR)
Title: Slowly - releasable micro capsule
Inventor: UHDAKA KEIICHI
IPC: A61K8/00
Filed: 1988-07-18
Granted: 1990-08-13
Abstract: The microcapsules consist of hydrophobic volatile core materials (1) and walls (2) of a condensate of formaldehyde (a) and (b) amino cpd. selected from guanamine, melamine, urea, or their derivs. The condensate is a 1:1 to 2:3 mol. ratio reaction mixt. of (a) and (b). The amt. of (2) w.r.t. (1) is 3-15 wt.%. (1) are insecticides, germicides, insect-proofing agents, deodorisers, perfumes, medicines, agricultural chemicals, or fertilizers. (a) are formalin or paraformaldehyde. (b) include acetoguanamine, Nmethylolmelamine, or N-methylolurea. A small amt. of core materials can be gradually and continuously discharged. Microcapsules are used as aq. dispersion or handles as powders.
Patent KR-910006510-B1 (KR)
Inventor: MATZIKI KOJI
IPC: H03K5/19
Filed: 1988-08-24
Granted: 1991-08-27
Abstract: 내용 없음.
Patent KR-0129004-B1 (KR)
Inventor: TAKENOUCHI YOUJI
IPC: C01B17/96
Filed: 1988-09-15
Granted: 1998-04-04
Abstract: 내용없음.
Patent KR-910005549-B1 (KR)
Inventor: OKIWARA TAKASI
IPC: G02B21/26
Filed: 1988-10-07
Granted: 1991-07-31
Abstract: 내용 없음.
Patent KR-900009022-B1 (KR)
Title: Non peptidic renin inhibitors
Inventor: ROSATI ROBERT L
IPC: C07D215/56
Filed: 1988-12-14
Granted: 1990-12-17
Abstract: Simple amides and derivatives thereof useful for inhibiting the angiotensinogen-cleaving action of the enzyme renin of the formula: <CHEM> wherein R1 is (C6-C8)cycloalkyl or i-propyl; R2 is (C3-C5)alkyl, phenyl, methylvinyl, dimethylvinyl, halovinyl, hydroxy(C1-C3)alkyl or amino(C1-C4)alkyl; R3 is (C1-C6)alkyl or morpholinoethyl; and Het is defined to include certain mono and bicyclic nitrogen-containing heterocyclic rings or heterocyclylalkyl groups.
Patent KR-960005323-B1 (KR)
Inventor: IMAIZUMI NOBUO
IPC: H01F41/02
Filed: 1986-06-27
Granted: 1996-04-23
Abstract: 내용 없음.
Patent KR-930007711-B1 (KR)
Inventor: KANEYUKI KAZUTOSHI
IPC: H02K29/00
Filed: 1988-02-09
Granted: 1993-08-18
Abstract: 내용 없음.
Patent KR-960013415-B1 (KR)
Inventor: TOMOJI HARANOYA
IPC: D02G3/40
Filed: 1989-04-28
Granted: 1996-10-05
Abstract: 내용 없음.
Patent KR-920003479-B1 (KR)
Inventor: OKAMODO MASAYUKI
IPC: G06T11/20
Filed: 1989-06-29
Granted: 1992-05-01
Abstract: 내용 없음.
Patent KR-920005055-B1 (KR)
Inventor: SUZUKI SUNAO
IPC: G01R19/00
Filed: 1989-08-16
Granted: 1992-06-26
Abstract: 내용 없음.
Patent KR-970005533-B1 (KR)
Inventor: BONHAM JAMES A
IPC: G03F7/029
Filed: 1989-09-06
Granted: 1997-04-17
Abstract: 내용없음.
Patent KR-960016858-B1 (KR)
Inventor: PARKER DANE KENTON
IPC: B01J31/02
Filed: 1989-09-25
Granted: 1996-12-23
Abstract: 요약없음.
Patent KR-930001100-B1 (KR)
Title: Multiplier using gilbert four quadrant core
Inventor: KIM SONG-CHAN
IPC: G06F7/52
Filed: 1989-12-21
Granted: 1993-02-15
Abstract: The multiplier having an excellent null suppression and  null offset is described as Z= n x (X x Y), where Z is output, X and  Y are input of multiplier, n is integer. The 4-phase transistor core comprises transistors (Q1,Q2) including the differential amplifier and transistors (Q3,Q4) including the differential amplifier.  The first multiply  section  (10)  includes  a  first  input  terminal between the common base terminals of the transistors (Q1,Q4,Q2,Q3) and a output terminal  between  the  co-lector  terminals  of  the transistors (Q1,Q4 ). This multiplier can provide  the  multiplying operation of high frequency region without using the adder.
Patent KR-930004969-B1 (KR)
Inventor: USUI MASAYOSHI
IPC: G01K5/62
Filed: 1989-12-27
Granted: 1993-06-11
Abstract: 내용 없음.
Patent KR-970009160-B1 (KR)
Title: Riboflavin producing strains of microorganisms, method for selecting and method for fermentation
Inventor: HEEFNER DONALD L
IPC: C12N15/04
Filed: 1988-06-02
Granted: 1997-06-07
Abstract: Strains of yeast of the species Candida famata are disclosed which can produce 10 grams of riboflavin per liter in 6 days, and in particular, strains identified by ATCC Accession Nos. 20849 and 20850. Riboflavin yields of more than 20 grams per liter in 200 hours have been achieved. Strains of the present invention have increased sensitivity to iron inhibition of flavinogenesis and have enhanced riboflavin production per cell at increased iron concentrations in the fermentation medium.
Patent KR-920010868-B1 (KR)
Title: Frame for forming paving slabs
Inventor: HAYASHI ISAO
IPC: E01C9/00
Filed: 1988-09-14
Granted: 1992-12-19
Abstract: The frame has a body bottomed compartments, drip holes made in the bottom walls of the compartments and vertical bores which are provided in the partition walls defining the compartments. The bores are opened at their lower ends and closed openably at their upper ends. The upper ends of the bores are closed openably with a thin film, which is formed integrally with the frame body, or adhesive tapes attached to the upper endds of the partition walls. Concrete or mortar is placed in the compartments and after it has hardened, the upper end portions of the partition walls are cut off slightly or the adhesive tapes attached to the upper ends of th partition walls are removed to open the upper ends of the bores. The water-permeability of the paving slabs is secured by the vertical bores.
Patent KR-920008173-B1 (KR)
Inventor: BUJESE DAVID P
IPC: G03G13/01
Filed: 1988-12-14
Granted: 1992-09-24
Abstract: 내용 없음.
Patent KR-0149495-B1 (KR)
Inventor: WITTMANN HORST
IPC: H01J61/72
Filed: 1990-03-07
Granted: 1998-10-01
Abstract: 내용없음.