FR2072162B1 - - Google Patents

Info

Publication number
FR2072162B1
FR2072162B1 FR707047740A FR7047740A FR2072162B1 FR 2072162 B1 FR2072162 B1 FR 2072162B1 FR 707047740 A FR707047740 A FR 707047740A FR 7047740 A FR7047740 A FR 7047740A FR 2072162 B1 FR2072162 B1 FR 2072162B1
Authority
FR
France
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
FR707047740A
Other versions
FR2072162A1 (fr
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.)
MacDermid Inc
Original Assignee
MacDermid Inc
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 MacDermid Inc filed Critical MacDermid Inc
Publication of FR2072162A1 publication Critical patent/FR2072162A1/fr
Application granted granted Critical
Publication of FR2072162B1 publication Critical patent/FR2072162B1/fr
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/20Layered products comprising a layer of metal comprising aluminium or copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/32Layered products comprising a layer of synthetic resin comprising polyolefins
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/1601Process or apparatus
    • C23C18/1633Process of electroless plating
    • C23C18/1646Characteristics of the product obtained
    • C23C18/165Multilayered product
    • C23C18/1653Two or more layers with at least one layer obtained by electroless plating and one layer obtained by electroplating
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02Anodisation
    • C25D11/04Anodisation of aluminium or alloys based thereon
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/02Electroplating of selected surface areas
    • C25D5/022Electroplating of selected surface areas using masking means
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/10Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
    • H05K3/18Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material
    • H05K3/181Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material by electroless plating
    • H05K3/182Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material by electroless plating characterised by the patterning method
    • H05K3/184Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material by electroless plating characterised by the patterning method using masks
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/38Improvement of the adhesion between the insulating substrate and the metal
    • H05K3/381Improvement of the adhesion between the insulating substrate and the metal by special treatment of the substrate
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/38Improvement of the adhesion between the insulating substrate and the metal
    • H05K3/382Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal
    • H05K3/385Improvement of the adhesion between the insulating substrate and the metal by special treatment of the metal by conversion of the surface of the metal, e.g. by oxidation, whether or not followed by reaction or removal of the converted layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/02Temperature
    • B32B2309/022Temperature vs pressure profiles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/02Temperature
    • B32B2309/025Temperature vs time profiles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2311/00Metals, their alloys or their compounds
    • B32B2311/24Aluminium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00Polyalkenes
    • B32B2323/10Polypropylene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2355/00Specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of index codes B32B2323/00 - B32B2333/00
    • B32B2355/02ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00Electrical equipment
    • B32B2457/08PCBs, i.e. printed circuit boards
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/03Use of materials for the substrate
    • H05K1/0313Organic insulating material
    • H05K1/0353Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
    • H05K1/0366Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement reinforced, e.g. by fibres, fabrics
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/09Use of materials for the conductive, e.g. metallic pattern
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/01Dielectrics
    • H05K2201/0104Properties and characteristics in general
    • H05K2201/0129Thermoplastic polymer, e.g. auto-adhesive layer; Shaping of thermoplastic polymer
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/03Conductive materials
    • H05K2201/0332Structure of the conductor
    • H05K2201/0335Layered conductors or foils
    • H05K2201/0355Metal foils
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/03Metal processing
    • H05K2203/0315Oxidising metal
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/07Treatments involving liquids, e.g. plating, rinsing
    • H05K2203/0703Plating
    • H05K2203/0716Metallic plating catalysts, e.g. for direct electroplating of through holes; Sensitising or activating metallic plating catalysts
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/11Treatments characterised by their effect, e.g. heating, cooling, roughening
    • H05K2203/1105Heating or thermal processing not related to soldering, firing, curing or laminating, e.g. for shaping the substrate or during finish plating
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/11Treatments characterised by their effect, e.g. heating, cooling, roughening
    • H05K2203/1152Replicating the surface structure of a sacrificial layer, e.g. for roughening
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/14Related to the order of processing steps
    • H05K2203/1407Applying catalyst before applying plating resist

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Laminated Bodies (AREA)
  • Chemically Coating (AREA)
FR707047740A 1969-12-31 1970-12-31 Expired FR2072162B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88947269A 1969-12-31 1969-12-31

Publications (2)

Publication Number Publication Date
FR2072162A1 FR2072162A1 (fr) 1971-09-24
FR2072162B1 true FR2072162B1 (fr) 1973-02-02

Family

ID=25395172

Family Applications (1)

Application Number Title Priority Date Filing Date
FR707047740A Expired FR2072162B1 (fr) 1969-12-31 1970-12-31

Country Status (9)

Country Link
US (1) US3620933A (fr)
BE (1) BE760954A (fr)
CH (1) CH527056A (fr)
DE (1) DE2064861C3 (fr)
ES (1) ES386975A1 (fr)
FR (1) FR2072162B1 (fr)
GB (1) GB1341208A (fr)
NL (1) NL7019034A (fr)
SE (1) SE357125B (fr)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839108A (en) * 1970-07-22 1974-10-01 Us Navy Method of forming a precision pattern of apertures in a plate
US3944449A (en) * 1970-07-30 1976-03-16 Olin Corporation Method of producing tarnish resistant copper and copper alloys and products thereof
US3941627A (en) * 1970-07-30 1976-03-02 Olin Corporation Method of producing tarnish resistant copper and copper alloys and products thereof
US3941628A (en) * 1970-07-30 1976-03-02 Olin Corporation Method of producing tarnish resistant copper and copper alloys and products thereof
JPS5517507B2 (fr) * 1972-06-29 1980-05-12
US3978252A (en) * 1973-03-23 1976-08-31 Macdermid Incorporated Method of improving the adhesion between a molded resin substrate and a metal film deposited thereon
US3846168A (en) * 1973-07-02 1974-11-05 Ibm Method of forming bondable substrate surfaces
US3903326A (en) * 1973-12-13 1975-09-02 Gen Electric Process for producing metal clad circuit boards
US4118523A (en) * 1975-10-22 1978-10-03 International Computers Limited Production of semiconductor devices
US4100312A (en) * 1975-11-07 1978-07-11 Macdermid Incorporated Method of making metal-plastic laminates
DE2828288C2 (de) * 1978-06-28 1982-04-15 Dynamit Nobel Ag, 5210 Troisdorf Verfahren zur Herstellung von Basismaterial für gedruckte Schaltungen
US4265943A (en) * 1978-11-27 1981-05-05 Macdermid Incorporated Method and composition for continuous electroless copper deposition using a hypophosphite reducing agent in the presence of cobalt or nickel ions
US4263341A (en) * 1978-12-19 1981-04-21 Western Electric Company, Inc. Processes of making two-sided printed circuit boards, with through-hole connections
ES487112A1 (es) * 1978-12-22 1980-10-01 Monsanto Co Un procedimiento para la preparacion de un estratificado de metal-termoplastico-metal
DE3008143C2 (de) * 1980-03-04 1982-04-08 Ruwel-Werke Spezialfabrik für Leiterplatten GmbH, 4170 Geldern Verfahren zum Herstellen von gedruckten Leiterplatten mit Lochungen, deren Wandungen metallisiert sind
DE3029521A1 (de) * 1980-08-04 1982-03-04 Helmuth 2058 Lauenburg Schmoock Schaltung mit aufgedruckten leiterbahnen und verfahren zu deren herstellung
US4368281A (en) * 1980-09-15 1983-01-11 Amp Incorporated Printed circuits
DE3145721A1 (de) * 1981-11-19 1983-05-26 Helmuth 2058 Lauenburg Schmoock Verfahren zum herstellen von gedruckten schaltungen
US4532152A (en) * 1982-03-05 1985-07-30 Elarde Vito D Fabrication of a printed circuit board with metal-filled channels
US4608274A (en) * 1982-08-06 1986-08-26 Faultless Pcbs Method of manufacturing circuit boards
US4452664A (en) * 1983-08-01 1984-06-05 General Electric Company Method for predetermining peel strength at copper/aluminum interface
FR2557497B1 (fr) * 1983-12-29 1986-07-11 Demeure Loic Support metallise a base de polypropylene et procede de fabrication de ce support
US4581301A (en) * 1984-04-10 1986-04-08 Michaelson Henry W Additive adhesive based process for the manufacture of printed circuit boards
US4600480A (en) * 1985-05-09 1986-07-15 Crown City Plating Method for selectively plating plastics
US4732717A (en) * 1985-10-11 1988-03-22 Sumitomo Bakelite Company Limited Process for producing piezo-electric or pyro-electric composite sheet
DE3800682A1 (de) * 1988-01-13 1989-07-27 Bayer Ag Verfahren zur herstellung von elektrischen leiterplatten
JPH02144987A (ja) * 1988-11-26 1990-06-04 Sumitomo Metal Mining Co Ltd プリント配線板の製造方法
EP0460548A3 (en) * 1990-06-08 1993-03-24 Amp-Akzo Corporation Printed circuits and base materials precatalyzed for etal deposition
US6395625B1 (en) * 2001-10-12 2002-05-28 S & S Technology Corporation Method for manufacturing solder mask of printed circuit board
US6753480B2 (en) * 2001-10-12 2004-06-22 Ultratera Corporation Printed circuit board having permanent solder mask
US20050029109A1 (en) * 2002-05-07 2005-02-10 Gang Zhang Method of electrochemically fabricating multilayer structures having improved interlayer adhesion
WO2003095710A2 (fr) 2002-05-07 2003-11-20 Memgen Corporation Procedes et appareil de fabrication electrochimique de structures par couches entrelacees ou par gravure selective et remplissage des vides
US7384530B2 (en) * 2002-05-07 2008-06-10 Microfabrica Inc. Methods for electrochemically fabricating multi-layer structures including regions incorporating maskless, patterned, multiple layer thickness depositions of selected materials
US20050045585A1 (en) * 2002-05-07 2005-03-03 Gang Zhang Method of electrochemically fabricating multilayer structures having improved interlayer adhesion
JP3520285B1 (ja) * 2002-10-25 2004-04-19 Fcm株式会社 アルミニウム安定化積層体
TWI291500B (en) * 2003-05-07 2007-12-21 Univ Southern California Method of electrochemically fabricating multilayer structures having improved interlayer adhesion
US7410893B2 (en) * 2005-04-08 2008-08-12 Hewlett-Packard Development Company, L.P. System and method for depositing a seed layer
US20080095988A1 (en) * 2006-10-18 2008-04-24 3M Innovative Properties Company Methods of patterning a deposit metal on a polymeric substrate
US8764996B2 (en) * 2006-10-18 2014-07-01 3M Innovative Properties Company Methods of patterning a material on polymeric substrates
US7968804B2 (en) * 2006-12-20 2011-06-28 3M Innovative Properties Company Methods of patterning a deposit metal on a substrate

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099608A (en) * 1959-12-30 1963-07-30 Ibm Method of electroplating on a dielectric base
US3347695A (en) * 1964-03-27 1967-10-17 Mobil Oil Corp Method of surface activation of non-polar hydrocarbon resin and printing
US3317330A (en) * 1965-01-05 1967-05-02 Chemclean Corp Method of treating polyethylene and polypropylene plastic surfaces

Also Published As

Publication number Publication date
US3620933A (en) 1971-11-16
ES386975A1 (es) 1973-04-16
DE2064861B2 (de) 1973-06-20
BE760954A (fr) 1971-05-27
NL7019034A (fr) 1971-07-02
SE357125B (fr) 1973-06-12
DE2064861C3 (de) 1974-01-17
GB1341208A (en) 1973-12-19
FR2072162A1 (fr) 1971-09-24
CH527056A (fr) 1972-08-31
DE2064861A1 (de) 1971-07-08

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