BE828052A - Supports mineraux greffes pour fixation d'enzymes - Google Patents

Supports mineraux greffes pour fixation d'enzymes

Info

Publication number
BE828052A
BE828052A BE155503A BE155503A BE828052A BE 828052 A BE828052 A BE 828052A BE 155503 A BE155503 A BE 155503A BE 155503 A BE155503 A BE 155503A BE 828052 A BE828052 A BE 828052A
Authority
BE
Belgium
Prior art keywords
graft
enzyme binding
mineral supports
mineral
supports
Prior art date
Application number
BE155503A
Other languages
English (en)
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 filed Critical
Publication of BE828052A publication Critical patent/BE828052A/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/003—Catalysts comprising hydrides, coordination complexes or organic compounds containing enzymes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/0272—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing elements other than those covered by B01J31/0201 - B01J31/0255
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
    • C03C17/30—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with silicon-containing compounds
    • 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
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10—Coating or impregnating
    • C04B20/1051—Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
    • C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
    • C04B41/4911—Organo-clay compounds
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
    • C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
    • C04B41/4922—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as monomers, i.e. as organosilanes RnSiX4-n, e.g. alkyltrialkoxysilane, dialkyldialkoxysilane
    • C04B41/4933—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as monomers, i.e. as organosilanes RnSiX4-n, e.g. alkyltrialkoxysilane, dialkyldialkoxysilane containing halogens, i.e. organohalogen silanes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02—Silicon compounds
    • C07F7/08—Compounds having one or more C—Si linkages
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
    • C12N11/14—Enzymes or microbial cells immobilised on or in an inorganic carrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61—Surface area
    • B01J35/613—10-100 m2/g
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61—Surface area
    • B01J35/615—100-500 m2/g
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63—Pore volume
    • B01J35/635—0.5-1.0 ml/g
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63—Pore volume
    • B01J35/638—Pore volume more than 1.0 ml/g
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/64—Pore diameter
    • B01J35/653—500-1000 nm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/64—Pore diameter
    • B01J35/657—Pore diameter larger than 1000 nm
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
    • Y10T428/2995—Silane, siloxane or silicone coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
    • Y10T428/2996—Glass particles or spheres
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31609—Particulate metal or metal compound-containing
    • Y10T428/31612—As silicone, silane or siloxane

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Genetics & Genomics (AREA)
  • Microbiology (AREA)
  • Biochemistry (AREA)
  • Biotechnology (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Biomedical Technology (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Silicon Compounds (AREA)
BE155503A 1974-04-19 1975-04-17 Supports mineraux greffes pour fixation d'enzymes BE828052A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7413687A FR2267992A1 (fr) 1974-04-19 1974-04-19

Publications (1)

Publication Number Publication Date
BE828052A true BE828052A (fr) 1975-10-17

Family

ID=9137862

Family Applications (1)

Application Number Title Priority Date Filing Date
BE155503A BE828052A (fr) 1974-04-19 1975-04-17 Supports mineraux greffes pour fixation d'enzymes

Country Status (13)

Country Link
US (1) US4034139A (fr)
JP (1) JPS50145582A (fr)
BE (1) BE828052A (fr)
CH (1) CH601139A5 (fr)
DE (1) DE2516935B2 (fr)
DK (1) DK140020B (fr)
ES (1) ES436672A1 (fr)
FR (1) FR2267992A1 (fr)
GB (1) GB1478422A (fr)
IE (1) IE41000B1 (fr)
IT (1) IT1035382B (fr)
LU (1) LU72312A1 (fr)
NL (1) NL7504629A (fr)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2352827A1 (fr) * 1976-05-26 1977-12-23 Rhone Poulenc Ind Complexes support-aminoacylase
DE2758507C3 (de) * 1977-12-28 1981-05-27 Byk-Mallinckrodt Chemische Produkte Gmbh, 6057 Dietzenbach Stabilisierte biochemische Präparate, Verfahren zu ihrer Herstellung und ihre Verwendung
EP0003923B1 (fr) * 1978-02-16 1982-10-20 Rhone-Poulenc Specialites Chimiques Complexes support-enzyme et leur procédé de préparation
US4440903A (en) * 1978-06-30 1984-04-03 Ramot University Authority For Applied Research And Industrial Development Ltd. Dihaloisocyanide derivatives of polymers for coupling nucleophiles
ZA794221B (en) * 1978-09-05 1981-03-25 British Petroleum Co Process for the preparation of a functionalised solid product
US4231428A (en) * 1978-12-04 1980-11-04 Phillips Petroleum Company Well treatment method
DE2902108C2 (de) * 1979-01-19 1983-11-24 Mars Inc., 22102 McLean, Va. Verwendung von Calciumsilikatgranulaten beziehungsweise -pulvern
US4289651A (en) * 1979-12-20 1981-09-15 The Standard Oil Company Supported catalysts for the polymerization of alpha-olefins
CA1141358A (fr) * 1980-02-29 1983-02-15 Jan Chmielowiec Adsorbants chromatographiques a liaison mercuro-organique
DE3208598A1 (de) * 1982-03-10 1983-09-22 Degussa Ag, 6000 Frankfurt Verfahren zur herstellung von mit organosilanen oberflaechenmodifizierten zeolithen
US4530963A (en) * 1982-08-20 1985-07-23 Devoe-Holbein International, N.V. Insoluble chelating compositions
US4648975A (en) * 1983-08-17 1987-03-10 Pedro B. Macedo Process of using improved silica-based chromatographic supports containing additives
JPS61500078A (ja) * 1983-08-17 1986-01-16 マセド　ペドロ　マノエル　ブア−ケ 添加物を含む改良シリカベ−スクロマトグラフィ−支持体
US4755294A (en) * 1984-11-06 1988-07-05 Societe Anonyme Dite Compagnie Francaise De Raffinage Stationary phase, preparation thereof and chromatographic column containing same
US4801445A (en) * 1985-07-29 1989-01-31 Shiseido Company Ltd. Cosmetic compositions containing modified powder or particulate material
US4818614A (en) * 1985-07-29 1989-04-04 Shiseido Company Ltd. Modified powder
US5258071A (en) * 1987-05-14 1993-11-02 Glaverbel Vitreous filler material for a polymeric matrix
LU87138A1 (fr) * 1988-02-19 1989-09-20 Glaverbel Perles de verre traitees en surface,procede de traitement de la surface des perles de verre et matrice polymere synthetique incorporant de telles perles de verre
JP2688596B2 (ja) * 1988-08-05 1997-12-10 株式会社ワイエムシィ 酵素固定化カラム用充填剤
US5137765A (en) * 1988-08-05 1992-08-11 Porton Instruments, Inc. Derivatized glass supports for peptide and protein sequencing
US5194279A (en) * 1991-06-20 1993-03-16 Ppg Industries, Inc. Glucoamylase removal using nitrogen-functionalized amorphous precipitated silica
DE4234325A1 (de) * 1992-10-12 1994-04-14 Basf Magnetics Gmbh Magnetische Aufzeichnungsträger
US5370818A (en) * 1993-05-28 1994-12-06 Potters Industries, Inc. Free-flowing catalyst coated beads for curing polyester resin
DE4408152A1 (de) * 1994-03-11 1995-09-14 Studiengesellschaft Kohle Mbh Immobilisierte Lipasen in hydrophoben Sol-Gel-Materialien
US6689715B1 (en) * 2000-02-09 2004-02-10 Hammen Corporation Tethered polymer ligands
US6802966B2 (en) * 2001-08-14 2004-10-12 W. R. Grace & Co. Conn. Solid compositions for selective adsorption from complex mixtures
US6987079B2 (en) * 2001-08-14 2006-01-17 W.R. Grace & Co.-Conn. Supported catalyst systems
AU2013330344B2 (en) 2012-09-17 2018-07-05 W. R. Grace & Co.-Conn. Chromatography media and devices
JP6914189B2 (ja) 2014-05-02 2021-08-04 ダブリュー・アール・グレース・アンド・カンパニー−コーンＷ Ｒ Ｇｒａｃｅ ＆ Ｃｏ−Ｃｏｎｎ 官能化担体材料並びに官能化担体材料を作製及び使用する方法
EP3302784B1 (fr) 2015-06-05 2021-10-06 W.R. Grace & Co.-Conn. Agents de clarification adsorbants pour le biotraitement et procédés de production et d'utilisation desdits agents
US12012346B2 (en) * 2018-12-14 2024-06-18 Aqvita Srl Process for in-line mineralisation and carbonation of demineralised water

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3560254A (en) * 1965-09-16 1971-02-02 Ici Ltd Grafting polymers on glass and like siliceous materials
US3830738A (en) * 1970-02-16 1974-08-20 Ici Ltd Surface treatment of particulate solids

Also Published As

Publication number Publication date
ES436672A1 (es) 1977-02-01
DE2516935B2 (de) 1976-09-16
IE41000B1 (en) 1979-09-26
IE41000L (en) 1975-10-19
DK140020C (fr) 1979-11-05
DK140020B (da) 1979-06-05
US4034139A (en) 1977-07-05
JPS50145582A (fr) 1975-11-21
GB1478422A (en) 1977-06-29
FR2267992A1 (fr) 1975-11-14
CH601139A5 (fr) 1978-06-30
DE2516935A1 (de) 1975-10-23
NL7504629A (nl) 1975-10-21
IT1035382B (it) 1979-10-20
DK166875A (fr) 1975-10-20
LU72312A1 (fr) 1976-03-17

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