GB1241541A - Method of producing an embossed fibrous sheet - Google Patents

Method of producing an embossed fibrous sheet

Info

Publication number
GB1241541A
GB1241541A GB3312367A GB3312367A GB1241541A GB 1241541 A GB1241541 A GB 1241541A GB 3312367 A GB3312367 A GB 3312367A GB 3312367 A GB3312367 A GB 3312367A GB 1241541 A GB1241541 A GB 1241541A
Authority
GB
United Kingdom
Prior art keywords
plastics material
sheet
woven
flowable
july
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
GB3312367A
Inventor
Louis Richard Mizell
Mary Scheckel Schur
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.)
IWS Nominee Co Ltd
Original Assignee
IWS Nominee Co 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 IWS Nominee Co Ltd filed Critical IWS Nominee Co Ltd
Priority to GB3312367A priority Critical patent/GB1241541A/en
Priority to FR6908661A priority patent/FR2034386B1/fr
Priority to NL6905229A priority patent/NL6905229A/xx
Priority to AU59052/69A priority patent/AU435179B2/en
Priority to BE737132D priority patent/BE737132A/xx
Priority to CH1201369A priority patent/CH555740A/en
Priority to CH1201369D priority patent/CH1201369A4/xx
Priority to US3769119D priority patent/US3769119A/en
Publication of GB1241541A publication Critical patent/GB1241541A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/552—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving by applying solvents or auxiliary agents
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/60—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/60—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently
    • D04H1/62—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently at spaced points or locations
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H13/00—Other non-woven fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • D06N7/0092—Non-continuous polymer coating on the fibrous substrate, e.g. plastic dots on fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0854—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns in the form of a non-woven mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2311/00—Use of natural products or their composites, not provided for in groups B29K2201/00 - B29K2309/00, as reinforcement
    • B29K2311/10—Natural fibres, e.g. wool or cotton
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/722—Decorative or ornamental articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/726—Fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2211/00—Specially adapted uses
    • D06N2211/12—Decorative or sun protection articles
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1023—Surface deformation only [e.g., embossing]
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1039—Surface deformation only of sandwich or lamina [e.g., embossed panels]
    • 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
    • Y10T428/23907—Pile or nap type surface or component
    • Y10T428/23986—With coating, impregnation, or bond
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24612—Composite web or sheet
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/2481—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including layer of mechanically interengaged strands, strand-portions or strand-like strips
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24826—Spot bonds connect components

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

1,241,541. Producing embossed fibrous sheets. I.W.S. NOMINEE CO. Ltd. 17 July, 1968 [19 July, 1967], No. 33123/67. Heading B5N. [Also in Division D1] A fibrous sheet having thereon or therewithin a pattern of plastics material is compressed, the plastics material being flowable during the compression and being allowed to harden subsequently to locally bond the fibres together, and the compressed sheet is then wetted with water or steam so that it increases in thickness in those areas not having the hardened plastics material. The sheet may be felted, knitted or woven or a batt and its fibres may be animal, e.g. wool, vegetable, or synthetic, e.g. polyamide or polyester. The plastics material may be polyethylene, polypropylene, polyvinyl halide or may be an uncured phenolic or aminoplast resin which is heat hardened after the compression step. The plastics material may be applied in the form of a perforated sheet, or a woven or non-woven net in which case it is rendered flowable by heat from the compressing platens or rolls. Alternatively the plastics material may be flowable on application by embossed or engraved rolls, or spraying or wiping through stencils or pattern-positioned nozzles. The plastics material may be located between two fibrous sheets.
GB3312367A 1967-07-19 1967-07-19 Method of producing an embossed fibrous sheet Expired GB1241541A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB3312367A GB1241541A (en) 1967-07-19 1967-07-19 Method of producing an embossed fibrous sheet
FR6908661A FR2034386B1 (en) 1967-07-19 1969-03-25
NL6905229A NL6905229A (en) 1967-07-19 1969-04-03
AU59052/69A AU435179B2 (en) 1967-07-19 1969-08-04 Decorative fibrous sheets andthe production thereof
BE737132D BE737132A (en) 1967-07-19 1969-08-06
CH1201369A CH555740A (en) 1967-07-19 1969-08-07 Process for the production of a non-woven textile fabric, provided with a permanent relief-like pattern, containing protein-containing fibers.
CH1201369D CH1201369A4 (en) 1967-07-19 1969-08-07
US3769119D US3769119A (en) 1967-07-19 1971-04-09 Production of embossed fibrous sheets

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB3312367A GB1241541A (en) 1967-07-19 1967-07-19 Method of producing an embossed fibrous sheet
FR6908661A FR2034386B1 (en) 1967-07-19 1969-03-25
NL6905229A NL6905229A (en) 1967-07-19 1969-04-03
AU59052/69A AU435179B2 (en) 1967-07-19 1969-08-04 Decorative fibrous sheets andthe production thereof
BE737132 1969-08-06
CH1201369A CH555740A (en) 1967-07-19 1969-08-07 Process for the production of a non-woven textile fabric, provided with a permanent relief-like pattern, containing protein-containing fibers.

Publications (1)

Publication Number Publication Date
GB1241541A true GB1241541A (en) 1971-08-04

Family

ID=27542773

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3312367A Expired GB1241541A (en) 1967-07-19 1967-07-19 Method of producing an embossed fibrous sheet

Country Status (7)

Country Link
US (1) US3769119A (en)
AU (1) AU435179B2 (en)
BE (1) BE737132A (en)
CH (2) CH1201369A4 (en)
FR (1) FR2034386B1 (en)
GB (1) GB1241541A (en)
NL (1) NL6905229A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132554A (en) * 1982-12-17 1984-07-11 British United Shoe Machinery Shoe insole and the manufacture thereof
GB2247031A (en) * 1988-06-13 1992-02-19 Ruberoid Building Products Lim Reinforcement of tissue

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061820A (en) * 1976-04-07 1977-12-06 Oxford Chemicals, Incorporated Self-adhering material
US4159360A (en) * 1976-10-15 1979-06-26 Hercules Incorporated Stabilized fabrics
DE3233448A1 (en) * 1982-09-09 1984-03-15 Fa. Carl Freudenberg, 6940 Weinheim METHOD FOR PRODUCING A MULTICOLORED FLOORING
US5334446A (en) * 1992-01-24 1994-08-02 Fiberweb North America, Inc. Composite elastic nonwoven fabric
US5393599A (en) * 1992-01-24 1995-02-28 Fiberweb North America, Inc. Composite nonwoven fabrics
US7665262B2 (en) * 2006-05-09 2010-02-23 Integritect Consulting, Inc. Composite bevel siding
ES2895093T3 (en) * 2015-04-13 2022-02-17 Keter Plastic Ltd Multilayer injection molded article similar to an interlace and method for molding the same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543101A (en) * 1944-07-20 1951-02-27 American Viscose Corp Composite fibrous products and method of making them
US3047444A (en) * 1955-07-15 1962-07-31 Kimberly Clark Co Non-woven fabric and method of making the same
US2880111A (en) * 1956-01-11 1959-03-31 Chicopee Mfg Corp Textile-like nonwoven fabric
US2900291A (en) * 1957-03-18 1959-08-18 Richard A O'connell Production of non-woven fabrics
US3313270A (en) * 1964-01-03 1967-04-11 Internat Paper Box Machine Co Pattern coating apparatus
US3474952A (en) * 1965-02-18 1969-10-28 Du Pont Film/netting seal
US3459615A (en) * 1966-01-26 1969-08-05 Ppg Industries Inc Process for preparing reinforcing fabric for elastomeric products
US3571871A (en) * 1966-09-08 1971-03-23 Owens Corning Fiberglass Corp Method of treating fibrous glass fabrics
US3695984A (en) * 1968-01-08 1972-10-03 Westinghouse Electric Corp Novel micaceous insulation
US3684603A (en) * 1970-04-06 1972-08-15 Kimberly Clark Co Method of making a two-sided towel
US3708366A (en) * 1970-11-25 1973-01-02 Kimberly Clark Co Method of producing absorbent paper toweling material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132554A (en) * 1982-12-17 1984-07-11 British United Shoe Machinery Shoe insole and the manufacture thereof
GB2247031A (en) * 1988-06-13 1992-02-19 Ruberoid Building Products Lim Reinforcement of tissue
GB2247031B (en) * 1988-06-13 1993-10-27 Ruberoid Building Products Lim Reinforcement of tissue

Also Published As

Publication number Publication date
FR2034386A1 (en) 1970-12-11
CH1201369A4 (en) 1974-04-30
BE737132A (en) 1970-01-16
NL6905229A (en) 1970-10-06
US3769119A (en) 1973-10-30
AU5905269A (en) 1971-02-11
CH555740A (en) 1974-11-15
AU435179B2 (en) 1973-05-01
CH555740B (en)
FR2034386B1 (en) 1974-02-01

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