FI51935B - - Google Patents
Info
- Publication number
- FI51935B FI51935B FI983/71A FI98371A FI51935B FI 51935 B FI51935 B FI 51935B FI 983/71 A FI983/71 A FI 983/71A FI 98371 A FI98371 A FI 98371A FI 51935 B FI51935 B FI 51935B
- Authority
- FI
- Finland
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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/002—Inorganic yarns or filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
- B29B9/14—Making granules characterised by structure or composition fibre-reinforced
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/521—Pultrusion, i.e. forming and compressing by continuously pulling through a die and impregnating the reinforcement before the die
-
- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/002—Inorganic yarns or filaments
- D04H3/004—Glass yarns or filaments
-
- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/12—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
-
- 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
- B29K2105/25—Solid
- B29K2105/251—Particles, powder or granules
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/51—Use of fluidized bed in molding
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Reinforced Plastic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1651270 | 1970-04-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
FI51935B true FI51935B (it) | 1977-01-31 |
FI51935C FI51935C (fi) | 1977-05-10 |
Family
ID=10078667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI710983A FI51935C (fi) | 1970-04-07 | 1971-04-07 | Menetelmä kuituvahvisteisen termoplastisen aineen jatkuvaksi valmistam iseksi. |
Country Status (15)
Country | Link |
---|---|
US (1) | US3742106A (it) |
JP (1) | JPS523985B1 (it) |
AT (1) | AT323399B (it) |
BE (1) | BE765109A (it) |
CA (1) | CA948049A (it) |
CH (1) | CH518165A (it) |
ES (1) | ES390004A1 (it) |
FI (1) | FI51935C (it) |
FR (1) | FR2085896B1 (it) |
GB (1) | GB1334702A (it) |
LU (1) | LU62930A1 (it) |
NL (1) | NL151928B (it) |
NO (1) | NO137112C (it) |
SE (1) | SE381839B (it) |
ZA (1) | ZA711832B (it) |
Families Citing this family (62)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1352391A (en) * | 1971-06-10 | 1974-05-08 | Ici Ltd | Production of fibre reinforced thermoplastic materials |
JPS5225864B2 (it) * | 1972-03-10 | 1977-07-11 | ||
US4058581A (en) * | 1972-07-24 | 1977-11-15 | Exxon Research & Engineering Co. | Method of making thermoplastic resin composite |
NL7412504A (nl) * | 1973-10-09 | 1975-04-11 | Ici Ltd | Werkwijze voor het vormen van koorden van met versterkte polymeren, zo gevormde voort- sels en inrichting voor het uitvoeren van werkwijze. |
GB1481010A (en) * | 1973-11-29 | 1977-07-27 | Plastic Coatings Ltd | Coating low-mass articles |
US4260265A (en) * | 1978-07-07 | 1981-04-07 | The Babcock & Wilcox Company | Fiber-resin blending technique |
US4298653A (en) * | 1978-12-15 | 1981-11-03 | Ppg Industries, Inc. | Method for producing an improved bundle of a plurality of fiber glass strands |
US4439387A (en) * | 1979-09-13 | 1984-03-27 | Polymer Composites, Inc. | Method of manufacturing a composite reinforcing structure |
USRE32772E (en) * | 1979-09-13 | 1988-10-25 | Polymer Composites, Inc. | Method of manufacturing a composite reinforcing structure |
EP0033244A3 (en) * | 1980-01-23 | 1982-03-31 | Henry Roy Smith | Fibre reinforced materials and methods of making and using them |
US4305343A (en) * | 1980-02-25 | 1981-12-15 | Sonco Wholesale Fence, Inc. | Polymer coated chain link fencing |
DE3264459D1 (en) * | 1981-01-21 | 1985-08-08 | Ici Plc | Process of producing fibre-reinforced shaped articles |
FR2501571B1 (fr) * | 1981-03-12 | 1988-02-12 | Renault | Pieces moulees renforcees par des profiles realises par pultrusion |
FR2504449A1 (fr) * | 1981-04-22 | 1982-10-29 | Renault | Realisation par pultrusion de profiles a partir de polymeres thermoplastiques |
WO1982004456A1 (en) * | 1981-06-12 | 1982-12-23 | Werner Vogel | Grid-shaped armature coated with thermoplastic material and device for the manufacturing thereof |
FR2516441A1 (fr) * | 1981-11-18 | 1983-05-20 | Spie Batignolles | Procede de fabrication de profiles en resine thermoplastique chargee de fibres, installation pour la mise en oeuvre, profiles obtenus et leur utilisation |
MC1573A1 (fr) * | 1983-11-21 | 1985-02-04 | Silvatrim | Procede pour la fabrication d'objets composites |
FR2567449A1 (fr) * | 1984-07-11 | 1986-01-17 | Galichon Jean | Realisation d'un plastique thermoretractable souple renforce par des elements fibres longues preimpregnees devenant composite rigide lors de la mise en oeuvre du thermoretractable |
US4743413A (en) * | 1986-07-23 | 1988-05-10 | Galichon Jean P | Method of manufacturing thermostable pieces made from composite materials and the pieces thus obtained |
DE3704035A1 (de) * | 1986-09-01 | 1988-03-03 | Menzolit Gmbh | Verfahren zur herstellung eines wirrfaserstoffs aus glasfasern als zwischenprodukt fuer die herstellung glasfaserverstaerkter kunststofformteile sowie vorrichtung zur durchfuehrung des verfahrens |
US5139723A (en) * | 1987-02-10 | 1992-08-18 | Menzolit Gmbh | Process and apparatus for producing fibre-reinforced thermoplastic material for the production of mouldings |
US5009941A (en) * | 1987-03-12 | 1991-04-23 | Owens-Corning Fiberglas Corporation | Tube or pipe formed a thermoplastic powder impregnated fiberglass roving |
DE3888252T2 (de) * | 1987-07-11 | 1994-06-30 | Kobe Steel Ltd | Verfahren zur kontinuierlichen Herstellung faserverstärkter thermoplastischer Prepregs und Vorrichtung zur Durchführung desselben. |
GB8827146D0 (en) * | 1988-11-21 | 1988-12-29 | Ici Plc | Preparation of refractory materials |
US5042122A (en) * | 1990-02-26 | 1991-08-27 | Board Of Trustees Operating Michigan State University | Method and system for spreading a tow of fibers |
US5123373A (en) * | 1990-02-26 | 1992-06-23 | Board Of Trustees Operating Michigan State University | Method for fiber coating with particles |
US5102690A (en) * | 1990-02-26 | 1992-04-07 | Board Of Trustees Operating Michigan State University | Method coating fibers with particles by fluidization in a gas |
US5057338A (en) * | 1990-05-16 | 1991-10-15 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Process for application of powder particles to filamentary materials |
US5433419A (en) * | 1991-11-28 | 1995-07-18 | Polyplastics Co., Ltd. | Method for forming fiber-reinforced molding pellets |
IT1254197B (it) * | 1992-02-06 | 1995-09-14 | Donegani Guido Ist | Procedimento per la preparazione di corpi formati in polimeri termoplastici rinforzati con fibra lunga |
IT1256080B (it) * | 1992-07-31 | 1995-11-27 | Enichem | Materiale composito a matrice mista, termoplastica e termoindurente, rinforzato con fibre continue. |
IT1256081B (it) * | 1992-07-31 | 1995-11-27 | Enichem Spa | Materiale composito a matrice mista rinforzato con fibre continue |
IT1265070B1 (it) * | 1993-05-18 | 1996-10-30 | Eniricerche Spa | Filamento composito termoplastico flessibile contenente fibre continue e procedimento per la sua preparazione |
US5993906A (en) * | 1993-06-23 | 1999-11-30 | Cambridge Industries, Inc. | Edge seal process and product |
US5674565A (en) * | 1993-06-23 | 1997-10-07 | Cambridge Industries, Inc. | Liquid thermoset sealers and sealing process for molded plastics |
DE69420688T2 (de) * | 1993-12-29 | 2000-01-27 | Toho Rayon Co., Ltd. | Verfahren und Vorrichtung zur Herstellung eines zylindrischen Gegenstandes aus Faserverbundmaterial |
IT1271002B (it) * | 1994-09-06 | 1997-05-26 | Enichem Spa | Procedimento per la preparazione di un filamento composito termoplastico flessibile contenente fibre continue |
US5639307A (en) * | 1995-01-17 | 1997-06-17 | Electrostatic Technology, Inc. | Fiber bundle coating apparatus |
US5891560A (en) * | 1997-07-02 | 1999-04-06 | The Dow Chemical Company | Fiber-reinforced composite and method of making same |
CA2316250C (en) * | 1998-01-16 | 2009-10-06 | Neopreg Ag | Fibre coating method |
DE69907907T2 (de) * | 1998-06-08 | 2004-03-11 | Complastik Corp., Lowell | Verbundgegenstände insbesondere prepregs, vorformlinge, laminate und sandwich formteile, und verfahren zu deren herstellung |
DE19961216A1 (de) * | 1999-12-15 | 2001-06-28 | Hempage Ag | Bewehrungsmaterial, Verfahren zu seiner Herstellung und Anwendung des Bewehrungsmaterials |
AU2001229311A1 (en) * | 2000-01-13 | 2001-07-24 | The Dow Chemical Company | Small cross-section composites of longitudinally oriented fibers and a thermoplastic resin as concrete reinforcement |
JP2004511683A (ja) * | 2000-01-13 | 2004-04-15 | ダウ グローバル テクノロジーズ インコーポレイティド | コンクリート構造物用補強棒 |
WO2002046276A2 (en) | 2000-12-06 | 2002-06-13 | Complastik Corporation | Hybrid composite articles and methods for their production |
US6517648B1 (en) | 2001-11-02 | 2003-02-11 | Appleton Papers Inc. | Process for preparing a non-woven fibrous web |
US20060144504A1 (en) * | 2004-12-31 | 2006-07-06 | Edwards Christopher M | Composites of reinforcing fibers and thermoplastic resins |
US20070156271A1 (en) * | 2005-12-30 | 2007-07-05 | Stefanie Runde | Template for generating physical-operation objects |
US8993670B2 (en) | 2006-02-27 | 2015-03-31 | Asahi Kasei Chemicals Corporation | Glass-fiber reinforced thermoplastic resin composition and molded article thereof |
JP5274244B2 (ja) * | 2006-03-13 | 2013-08-28 | 旭化成ケミカルズ株式会社 | ガラス繊維強化ポリアミド樹脂組成物の製造方法 |
EP2345689B1 (en) | 2008-09-30 | 2017-04-12 | Mitsui Chemicals, Inc. | Fiber-reinforced resin composition and molded object thereof |
US8381172B2 (en) * | 2008-12-02 | 2013-02-19 | Nokia Corporation | Method, apparatus, mobile terminal and computer program product for employing a form engine as a script engine |
WO2012087574A1 (en) | 2010-12-20 | 2012-06-28 | Neptune Research, Inc. | Systems, methods, and devices for applying fluid composites to a carrier sheet |
BR112013025588A2 (pt) | 2011-04-12 | 2016-12-27 | Ticona Llc | cabo umbilical para uso em aplicações submarinas |
WO2012142107A1 (en) | 2011-04-12 | 2012-10-18 | Ticona Llc | Continious fiber reinforced thermoplastic rod and pultrusion method for its manufacture |
US9190184B2 (en) | 2011-04-12 | 2015-11-17 | Ticona Llc | Composite core for electrical transmission cables |
JP6937594B2 (ja) | 2017-03-23 | 2021-09-22 | 日鉄ケミカル&マテリアル株式会社 | 炭素繊維強化樹脂組成物用の密着性付与剤 |
JP7158423B2 (ja) | 2017-06-21 | 2022-10-21 | ビーエーエスエフ ソシエタス・ヨーロピア | ポリアミドに接着するための熱可塑性ポリウレタンエラストマー |
FR3067961B1 (fr) * | 2017-06-22 | 2020-11-06 | Arkema France | Procede de fabrication d'un materiau fibreux impregne de polymere thermoplastique |
EP3670127A1 (fr) * | 2018-12-18 | 2020-06-24 | Arkema France | Procede de fabrication d'un materiau fibreux impregne de polymere thermoplastique |
EP3670128B1 (fr) * | 2018-12-18 | 2022-07-20 | Arkema France | Procede de fabrication d'un materiau fibreux pre-impregne de polymere thermoplastique en lit fluidise |
FR3091828A1 (fr) | 2019-01-17 | 2020-07-24 | Arkema France | Semi-produits comprenant une résine thermoplastique |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2399258A (en) * | 1943-03-20 | 1946-04-30 | American Viscose Corp | Novel filamentous product and method of making it |
US2888501A (en) * | 1956-12-31 | 1959-05-26 | Pure Oil Co | Process and catalyst for isomerizing hydrocarbons |
US2989777A (en) * | 1957-06-04 | 1961-06-27 | Surf Chemical Inc | Dry powder extruding apparatus and methods for producing polytetrafluoroethylene articles |
US2981631A (en) * | 1957-11-13 | 1961-04-25 | Polymer Corp | Fluidized bed coating method for forming a foam |
US3450810A (en) * | 1965-02-19 | 1969-06-17 | Bliss Co | Method of forming a coupling device |
US3530212A (en) * | 1967-02-16 | 1970-09-22 | Gen Motors Corp | Method of making glass resin laminates |
US3586560A (en) * | 1968-06-17 | 1971-06-22 | Eastman Kodak Co | Method of making a fiber-filled thermoplastic article |
FR2031719A5 (it) * | 1969-02-05 | 1970-11-20 | Verre Textile Ste | |
US3673027A (en) * | 1970-05-04 | 1972-06-27 | Johns Manville | Method of forming coated fibers |
-
1970
- 1970-04-07 CH CH508271A patent/CH518165A/de not_active IP Right Cessation
-
1971
- 1971-03-22 ZA ZA711832A patent/ZA711832B/xx unknown
- 1971-03-22 CA CA108,385A patent/CA948049A/en not_active Expired
- 1971-03-23 US US00127302A patent/US3742106A/en not_active Expired - Lifetime
- 1971-03-31 BE BE765109A patent/BE765109A/xx not_active IP Right Cessation
- 1971-04-05 FR FR7111907A patent/FR2085896B1/fr not_active Expired
- 1971-04-05 LU LU62930D patent/LU62930A1/xx unknown
- 1971-04-05 NO NO1301/71A patent/NO137112C/no unknown
- 1971-04-06 SE SE7104475A patent/SE381839B/xx unknown
- 1971-04-06 NL NL717104615A patent/NL151928B/xx not_active IP Right Cessation
- 1971-04-07 FI FI710983A patent/FI51935C/fi active
- 1971-04-07 JP JP46021116A patent/JPS523985B1/ja active Pending
- 1971-04-07 ES ES390004A patent/ES390004A1/es not_active Expired
- 1971-04-07 AT AT297071A patent/AT323399B/de not_active IP Right Cessation
- 1971-04-19 GB GB1651270A patent/GB1334702A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3742106A (en) | 1973-06-26 |
BE765109A (fr) | 1971-09-30 |
DE2117095B2 (de) | 1976-04-22 |
ES390004A1 (es) | 1973-06-01 |
NO137112B (no) | 1977-09-26 |
FR2085896A1 (it) | 1971-12-31 |
NO137112C (no) | 1978-01-04 |
ZA711832B (en) | 1971-12-29 |
NL151928B (nl) | 1977-01-17 |
CA948049A (en) | 1974-05-28 |
DE2117095A1 (de) | 1971-10-21 |
AT323399B (de) | 1975-07-10 |
JPS523985B1 (it) | 1977-01-31 |
FR2085896B1 (it) | 1975-01-17 |
GB1334702A (en) | 1973-10-24 |
CH518165A (de) | 1972-01-31 |
LU62930A1 (it) | 1971-08-26 |
SE381839B (sv) | 1975-12-22 |
NL7104615A (it) | 1971-10-11 |
FI51935C (fi) | 1977-05-10 |