GB2097378B - Basic refractory cementitious material and components thereof - Google Patents

Basic refractory cementitious material and components thereof

Info

Publication number
GB2097378B
GB2097378B GB8113157A GB8113157A GB2097378B GB 2097378 B GB2097378 B GB 2097378B GB 8113157 A GB8113157 A GB 8113157A GB 8113157 A GB8113157 A GB 8113157A GB 2097378 B GB2097378 B GB 2097378B
Authority
GB
United Kingdom
Prior art keywords
components
cementitious material
basic refractory
refractory cementitious
basic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB8113157A
Other versions
GB2097378A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Flogates Ltd
Original Assignee
Flogates Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Flogates Ltd filed Critical Flogates Ltd
Priority to GB8113157A priority Critical patent/GB2097378B/en
Priority to PT74748A priority patent/PT74748B/en
Priority to PH27141A priority patent/PH19145A/en
Priority to MX192379A priority patent/MX156657A/en
Priority to FI821459A priority patent/FI71718C/en
Priority to GR68000A priority patent/GR75429B/el
Priority to IN326/DEL/82A priority patent/IN158132B/en
Priority to PL1982236200A priority patent/PL129974B1/en
Priority to IT67559/82A priority patent/IT1156464B/en
Priority to SE8202675A priority patent/SE457794B/en
Priority to NZ200451A priority patent/NZ200451A/en
Priority to NO821406A priority patent/NO159376C/en
Priority to AU83071/82A priority patent/AU547853B2/en
Priority to JP57072532A priority patent/JPS57191256A/en
Priority to ES511772A priority patent/ES511772A0/en
Priority to EG82243A priority patent/EG15727A/en
Priority to CH2593/82A priority patent/CH649520A5/en
Priority to BR8202427A priority patent/BR8202427A/en
Priority to YU925/82A priority patent/YU42608B/en
Priority to BE0/207952A priority patent/BE893008A/en
Priority to KR8201861A priority patent/KR890001210B1/en
Priority to ZA822957A priority patent/ZA822957B/en
Priority to DE19823215993 priority patent/DE3215993A1/en
Priority to HU821352A priority patent/HU186497B/en
Priority to TR21823A priority patent/TR21823A/en
Priority to AT0167582A priority patent/AT390250B/en
Priority to FR828207455A priority patent/FR2504913B1/en
Priority to LU84121A priority patent/LU84121A1/en
Priority to CA000401977A priority patent/CA1170283A/en
Priority to NL8201790A priority patent/NL8201790A/en
Publication of GB2097378A publication Critical patent/GB2097378A/en
Application granted granted Critical
Publication of GB2097378B publication Critical patent/GB2097378B/en
Priority to AT187286A priority patent/AT384208B/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/06—Aluminous cements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/28—Plates therefor
    • B22D41/30—Manufacturing or repairing thereof
    • B22D41/32—Manufacturing or repairing thereof characterised by the materials used therefor
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C04B35/043—Refractories from grain sized mixtures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/44—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/6303—Inorganic additives
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0087—Uses not provided for elsewhere in C04B2111/00 for metallurgical applications
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
GB8113157A 1981-04-29 1981-04-29 Basic refractory cementitious material and components thereof Expired GB2097378B (en)

Priority Applications (31)

Application Number Priority Date Filing Date Title
GB8113157A GB2097378B (en) 1981-04-29 1981-04-29 Basic refractory cementitious material and components thereof
PT74748A PT74748B (en) 1981-04-29 1982-04-14 Basic refractory cementitious material and components thereof
PH27141A PH19145A (en) 1981-04-29 1982-04-15 Basic refractory cementitious materials
MX192379A MX156657A (en) 1981-04-29 1982-04-22 IMPROVEMENTS IN HYDRAULIC REFRACTORY CEMENT COMPOSITION
GR68000A GR75429B (en) 1981-04-29 1982-04-27
IN326/DEL/82A IN158132B (en) 1981-04-29 1982-04-27
FI821459A FI71718C (en) 1981-04-29 1982-04-27 HYDRAULIC ELDFAST CEMENTBLANDNING, ELDFAST DEL OCH FOERFARANDE FOER DESS FRAMSTAELLNING.
KR8201861A KR890001210B1 (en) 1981-04-29 1982-04-28 Basic refractory cementitious material and components thereof
SE8202675A SE457794B (en) 1981-04-29 1982-04-28 HYDRAULIC, ELFABLE CEMENT MATERIAL FOR MANUFACTURE OF CASTING COMPONENTS, COMPONENTS MANUFACTURED THEREOF, AND WAY TO MANUFACTURE THE COMPONENT
NZ200451A NZ200451A (en) 1981-04-29 1982-04-28 Hydraulic refractory cementitious formulation
NO821406A NO159376C (en) 1981-04-29 1982-04-28 CEMENTOUS MATERIAL AND USE OF THIS.
AU83071/82A AU547853B2 (en) 1981-04-29 1982-04-28 Basic refractory cementitious material
JP57072532A JPS57191256A (en) 1981-04-29 1982-04-28 Material having basic refractory cement properties and component substance therefor
ES511772A ES511772A0 (en) 1981-04-29 1982-04-28 PROCEDURE FOR OBTAINING A REFRACTORY ARTICLE RESISTANT TO WEAR OR EROSION TO CAST METAL.
EG82243A EG15727A (en) 1981-04-29 1982-04-28 Bosic refractory cementitions material and components thereof
CH2593/82A CH649520A5 (en) 1981-04-29 1982-04-28 BASIC FIREPROOF CEMENT MATERIAL.
PL1982236200A PL129974B1 (en) 1981-04-29 1982-04-28 Refractory water cement material
YU925/82A YU42608B (en) 1981-04-29 1982-04-28 Process for the manufacture of a fire resistant piece
BE0/207952A BE893008A (en) 1981-04-29 1982-04-28 BASIC REFRACTORY CEMENTITIOUS MATERIAL, REFRACTORY PARTS OBTAINED BY ITS CAST, AND THEIR MANUFACTURING METHOD
IT67559/82A IT1156464B (en) 1981-04-29 1982-04-28 BASIC REFRACTORY CEMENTITIOUS COMPOSITION REFRACTORY ELEMENTS OBTAINED WITH THIS COMPOSITION AND PROCEDURE FOR THE MANUFACTURE OF SUCH ELEMENTS
BR8202427A BR8202427A (en) 1981-04-29 1982-04-28 HYDRAULIC REFRACTORY CEMENT FORMULATION MOLDED REFRACTORY PIECE AND PROCESS FOR ITS PREPARATION
LU84121A LU84121A1 (en) 1981-04-29 1982-04-29 BASIC REFRACTORY CEMENT MATERIAL, REFRACTORY PARTS OBTAINED BY ITS CAST, AND THEIR MANUFACTURING METHOD
HU821352A HU186497B (en) 1981-04-29 1982-04-29 Basic refractory cement preperation for producing refractory casting parts resisting molten metals
TR21823A TR21823A (en) 1981-04-29 1982-04-29 BASIC ATESE-RESISTANT CIMENTOL MATERIAL AND ITS COMPONENT COMPONENTS
AT0167582A AT390250B (en) 1981-04-29 1982-04-29 HYDRAULIC FIREPROOF CEMENT COMPOSITION
FR828207455A FR2504913B1 (en) 1981-04-29 1982-04-29 BASIC REFRACTORY CEMENT MATERIAL, REFRACTORY PARTS OBTAINED BY ITS CAST, AND THEIR MANUFACTURING METHOD
ZA822957A ZA822957B (en) 1981-04-29 1982-04-29 Basic refractory cementitious materials and components thereof
CA000401977A CA1170283A (en) 1981-04-29 1982-04-29 Basic refractory cementitious materials and components thereof
DE19823215993 DE3215993A1 (en) 1981-04-29 1982-04-29 BASIC FIREPROOF CEMENT MATERIAL AND ITS COMPONENTS
NL8201790A NL8201790A (en) 1981-04-29 1982-04-29 BASIC, FIRE-RESISTANT, CEMENT-CONTAINING MATERIAL AND ITS COMPONENTS.
AT187286A AT384208B (en) 1981-04-29 1986-07-10 Process for producing a hydraulic refractory cement composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8113157A GB2097378B (en) 1981-04-29 1981-04-29 Basic refractory cementitious material and components thereof

Publications (2)

Publication Number Publication Date
GB2097378A GB2097378A (en) 1982-11-03
GB2097378B true GB2097378B (en) 1984-12-19

Family

ID=10521458

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8113157A Expired GB2097378B (en) 1981-04-29 1981-04-29 Basic refractory cementitious material and components thereof

Country Status (30)

Country Link
JP (1) JPS57191256A (en)
KR (1) KR890001210B1 (en)
AT (1) AT390250B (en)
AU (1) AU547853B2 (en)
BE (1) BE893008A (en)
BR (1) BR8202427A (en)
CA (1) CA1170283A (en)
CH (1) CH649520A5 (en)
DE (1) DE3215993A1 (en)
EG (1) EG15727A (en)
ES (1) ES511772A0 (en)
FI (1) FI71718C (en)
FR (1) FR2504913B1 (en)
GB (1) GB2097378B (en)
GR (1) GR75429B (en)
HU (1) HU186497B (en)
IN (1) IN158132B (en)
IT (1) IT1156464B (en)
LU (1) LU84121A1 (en)
MX (1) MX156657A (en)
NL (1) NL8201790A (en)
NO (1) NO159376C (en)
NZ (1) NZ200451A (en)
PH (1) PH19145A (en)
PL (1) PL129974B1 (en)
PT (1) PT74748B (en)
SE (1) SE457794B (en)
TR (1) TR21823A (en)
YU (1) YU42608B (en)
ZA (1) ZA822957B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4572862A (en) * 1984-04-25 1986-02-25 Delphic Research Laboratories, Inc. Fire barrier coating composition containing magnesium oxychlorides and high alumina calcium aluminate cements or magnesium oxysulphate
JPS60260476A (en) * 1984-06-05 1985-12-23 電気化学工業株式会社 Basic refractory cement composition
DE3615506A1 (en) * 1986-05-07 1987-11-12 Martin & Pagenstecher Gmbh FIRE RESISTANT THIOXOTROPE VIBRATION MASS AND METHOD FOR THE VIBRATION DELIVERY OF METALLURGICAL VESSELS OF THIS MASS
US9422195B1 (en) * 2012-09-19 2016-08-23 Universal Refractories, Inc. Magnesium oxide castable refractory foundry ladle liners

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD85303A (en) *
DE652909C (en) * 1933-06-08 1937-11-25 Magnesital G M B H Process for the production of refractory compounds, in particular ramming compounds and mortars
GB430036A (en) * 1933-12-22 1935-06-12 Quigley Co Improvements in and relating to the production of refractory material and bodies
GB765482A (en) * 1954-05-18 1957-01-09 Russell Pearce Heuer Improvements relating to refractory materials
US3507332A (en) * 1965-11-29 1970-04-21 Phillips Petroleum Co High temperature cements
BE756874A (en) * 1969-10-08 1971-03-01 Prost Sa REFRACTORY COMPOSITIONS WITH HYDRAULIC TAP
AT344218B (en) * 1975-06-02 1978-07-10 Didier Werke Ag WEAR PARTS, IN PARTICULAR FOR VALVE LATCHES ON CONTAINERS CONTAINING METAL MELT
AT342223B (en) * 1975-07-16 1978-03-28 Oesterr Amerikan Magnesit SLIDER CLOSURE MADE OF FIRE-RESISTANT BASIC MATERIAL
GB1575601A (en) * 1976-01-22 1980-09-24 Didier Werke Ag Refractory structures for outlet valves for metallurgical vessels
ZA763385B (en) * 1976-05-31 1977-05-25 Den Speulhof P Van A hydraulically setting high-alumina refractory concrete
DE2759908C2 (en) * 1976-07-22 1990-09-13 Societe Europeenne Des Produits Refractaires, 92200 Neuilly-Sur-Seine concrete
JPS6037657B2 (en) * 1976-09-17 1985-08-27 松下電器産業株式会社 DPCM device
JPS5388811A (en) * 1977-01-17 1978-08-04 Tokyo Shibaura Electric Co Refractories for melting furnace
DE2718701B2 (en) * 1977-04-27 1979-10-11 Didier-Werke Ag, 6200 Wiesbaden Self-supporting gate valve
FR2411166A1 (en) * 1977-12-12 1979-07-06 Lafarge Fondu Int REFRACTORY HYDRAULIC BINDER BASED ON CALCIUM ALUMINATE AND ITS PREPARATION PROCESS
JPS54105109A (en) * 1978-02-06 1979-08-17 Shinagawa Refractories Co Production of regular shape refractory
SE417950B (en) * 1978-06-22 1981-04-27 Hoeganaes Ab ELDFAST MOLDING MASS FOR PREPARING MONOLITIC FEEDS AND WAY TO PREPARE
FR2429763A1 (en) * 1978-06-26 1980-01-25 Produits Refractaires GAS PERMEABLE REFRACTORY PARTS
JPS5523004A (en) * 1978-08-02 1980-02-19 Towa Taika Kogyo Kk Spinel castable refractories
US4218256A (en) * 1979-03-06 1980-08-19 Kaiser Aluminum & Chemical Corporation Method of forming slide gate valve parts

Also Published As

Publication number Publication date
FR2504913A1 (en) 1982-11-05
IT1156464B (en) 1987-02-04
CH649520A5 (en) 1985-05-31
FI821459A0 (en) 1982-04-27
PL129974B1 (en) 1984-06-30
SE8202675L (en) 1982-10-30
MX156657A (en) 1988-09-22
NO159376C (en) 1988-12-21
KR830010014A (en) 1983-12-24
BE893008A (en) 1982-10-28
YU92582A (en) 1985-06-30
BR8202427A (en) 1983-04-12
GR75429B (en) 1984-07-17
ATA167582A (en) 1987-08-15
AU8307182A (en) 1982-11-04
PT74748B (en) 1983-10-31
NZ200451A (en) 1985-03-20
SE457794B (en) 1989-01-30
IN158132B (en) 1986-09-13
JPS57191256A (en) 1982-11-25
ES8307193A1 (en) 1983-07-01
FI821459L (en) 1982-10-30
ES511772A0 (en) 1983-07-01
NO159376B (en) 1988-09-12
KR890001210B1 (en) 1989-04-27
IT8267559A0 (en) 1982-04-28
PH19145A (en) 1986-01-10
LU84121A1 (en) 1983-12-16
HU186497B (en) 1985-08-28
FI71718C (en) 1987-02-09
AT390250B (en) 1990-04-10
ZA822957B (en) 1983-03-30
FR2504913B1 (en) 1991-10-25
PL236200A1 (en) 1982-11-08
YU42608B (en) 1988-10-31
NL8201790A (en) 1982-11-16
TR21823A (en) 1985-08-02
PT74748A (en) 1982-05-01
DE3215993A1 (en) 1982-11-18
FI71718B (en) 1986-10-31
NO821406L (en) 1982-11-01
AU547853B2 (en) 1985-11-07
GB2097378A (en) 1982-11-03
EG15727A (en) 1986-06-30
CA1170283A (en) 1984-07-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960429