ES2117549A1 - Improvements to the manufacture of transparent pieces of plastic material with incorporated internal decoration - Google Patents

Improvements to the manufacture of transparent pieces of plastic material with incorporated internal decoration

Info

Publication number
ES2117549A1
ES2117549A1 ES09502489A ES9502489A ES2117549A1 ES 2117549 A1 ES2117549 A1 ES 2117549A1 ES 09502489 A ES09502489 A ES 09502489A ES 9502489 A ES9502489 A ES 9502489A ES 2117549 A1 ES2117549 A1 ES 2117549A1
Authority
ES
Spain
Prior art keywords
plastic material
pieces
manufacture
internal decoration
transparent
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.)
Granted
Application number
ES09502489A
Other languages
Spanish (es)
Other versions
ES2117549B1 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to ES09502489A priority Critical patent/ES2117549B1/en
Publication of ES2117549A1 publication Critical patent/ES2117549A1/en
Application granted granted Critical
Publication of ES2117549B1 publication Critical patent/ES2117549B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/541Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles a substantially flat extra element being placed between and clamped by the joined hollow-preforms
    • B29C66/5412Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles a substantially flat extra element being placed between and clamped by the joined hollow-preforms said substantially flat extra element being flexible, e.g. a membrane
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4895Solvent bonding, i.e. the surfaces of the parts to be joined being treated with solvents, swelling or softening agents, without adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114Single butt joints
    • B29C66/1142Single butt to butt joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124Tongue and groove joints
    • B29C66/1246Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
    • B29C66/12463Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being tapered
    • B29C66/12464Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being tapered being V-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/302Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/733General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence
    • B29C66/7336General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light
    • B29C66/73365General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light at least one of the parts to be joined being transparent or translucent to visible light
    • B29C66/73366General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light at least one of the parts to be joined being transparent or translucent to visible light both parts to be joined being transparent or translucent to visible light
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832Reciprocating joining or pressing tools
    • B29C66/8322Joining or pressing tools reciprocating along one axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2033/00Use of polymers of unsaturated acids or derivatives thereof as moulding material
    • B29K2033/04Polymers of esters
    • B29K2033/12Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2067/00Use of polyesters or derivatives thereof, as moulding material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2069/00Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2995/00Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0026Transparent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/722Decorative or ornamental articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

Improvements to the manufacture of transparent pieces of plastic material with incorporated internal decoration, made from polycarbonate, methacrylate or PET, manufactured by injection and consisting of two transparent half-parts between which a sheet decorated on one or both sides is inserted, the next stage being to join the two half-parts together by means of ultrasonic welding, which dissolves the base plastic material, adhesive or glue. For this purpose, one of the half-pieces has, in its base, in contact with the opposite half-piece, a circumferential channel, close to the periphery, in which the solvent is introduced, if this method is used, which complements a projection of somewhat smaller dimensions located in an identical position on the opposite half-piece, it being possible for these pieces to be used as they are or to have other elements incorporated into them (adhesive or magnetic zones, fastening spikes, connections to other devices, etc.). All the aforesaid always in accordance with the principles of the invention.
ES09502489A 1995-12-13 1995-12-13 IMPROVEMENTS IN THE MANUFACTURE OF TRANSPARENT PARTS OF PLASTIC MATERIAL WITH INCORPORATED INTERNAL DECORATION. Expired - Lifetime ES2117549B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES09502489A ES2117549B1 (en) 1995-12-13 1995-12-13 IMPROVEMENTS IN THE MANUFACTURE OF TRANSPARENT PARTS OF PLASTIC MATERIAL WITH INCORPORATED INTERNAL DECORATION.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES09502489A ES2117549B1 (en) 1995-12-13 1995-12-13 IMPROVEMENTS IN THE MANUFACTURE OF TRANSPARENT PARTS OF PLASTIC MATERIAL WITH INCORPORATED INTERNAL DECORATION.

Publications (2)

Publication Number Publication Date
ES2117549A1 true ES2117549A1 (en) 1998-08-01
ES2117549B1 ES2117549B1 (en) 1999-04-01

Family

ID=8292508

Family Applications (1)

Application Number Title Priority Date Filing Date
ES09502489A Expired - Lifetime ES2117549B1 (en) 1995-12-13 1995-12-13 IMPROVEMENTS IN THE MANUFACTURE OF TRANSPARENT PARTS OF PLASTIC MATERIAL WITH INCORPORATED INTERNAL DECORATION.

Country Status (1)

Country Link
ES (1) ES2117549B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1833665A1 (en) * 2005-01-06 2007-09-19 LG Chemical Co. Ltd Plastic panel
NL2009186C2 (en) * 2012-07-13 2014-01-14 Robert Hittinger CONTAINER FOR CONTAINING AND SPREADING DRINKS.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES107599U (en) * 1964-07-17 1964-09-16 Augusto Amillach Jorge A cane (Machine-translation by Google Translate, not legally binding)
ES149892U (en) * 1969-06-11 1969-09-16 Castellarnau Cardona Gabriela Marble. (Machine-translation by Google Translate, not legally binding)
EP0278847A1 (en) * 1987-01-29 1988-08-17 Albert Jaffreo Device for exciting salivary secretion
EP0349721A1 (en) * 1988-07-06 1990-01-10 Ning Zhang A device for securing to and removing from fabric and a novel button or badge with a new securing device
US5051017A (en) * 1991-02-05 1991-09-24 The Gillette Company Clear roll-on bottle
GB2245306A (en) * 1990-06-21 1992-01-02 Universal Button Co Ltd Attachment means
ES1031452U (en) * 1995-06-14 1996-01-16 Bermejo Antonio Piera Marble
ES2115505A1 (en) * 1995-10-11 1998-06-16 Bermejo Antonio Piera Improvements to the manufacture of marbles

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES107599U (en) * 1964-07-17 1964-09-16 Augusto Amillach Jorge A cane (Machine-translation by Google Translate, not legally binding)
ES149892U (en) * 1969-06-11 1969-09-16 Castellarnau Cardona Gabriela Marble. (Machine-translation by Google Translate, not legally binding)
EP0278847A1 (en) * 1987-01-29 1988-08-17 Albert Jaffreo Device for exciting salivary secretion
EP0349721A1 (en) * 1988-07-06 1990-01-10 Ning Zhang A device for securing to and removing from fabric and a novel button or badge with a new securing device
GB2245306A (en) * 1990-06-21 1992-01-02 Universal Button Co Ltd Attachment means
US5051017A (en) * 1991-02-05 1991-09-24 The Gillette Company Clear roll-on bottle
ES1031452U (en) * 1995-06-14 1996-01-16 Bermejo Antonio Piera Marble
ES2115505A1 (en) * 1995-10-11 1998-06-16 Bermejo Antonio Piera Improvements to the manufacture of marbles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1833665A1 (en) * 2005-01-06 2007-09-19 LG Chemical Co. Ltd Plastic panel
EP1833665A4 (en) * 2005-01-06 2010-01-13 Lg Chemical Ltd Plastic panel
NL2009186C2 (en) * 2012-07-13 2014-01-14 Robert Hittinger CONTAINER FOR CONTAINING AND SPREADING DRINKS.

Also Published As

Publication number Publication date
ES2117549B1 (en) 1999-04-01

Similar Documents

Publication Publication Date Title
ATE355954T1 (en) TOOTHBRUSH BODY
DE69629971D1 (en) Hammock-resistant thermoplastic resin composition
DE60029015D1 (en) DENTAL MATERIALS WITH EXTENDED PROCESSING TIME, KITS AND METHOD
ES2161719T3 (en) PROTEIN BASED ADHESIVE CURED WITH ALDEHIDO.
AU6028596A (en) Multi-part injection molded plastic fan
DE69615314D1 (en) Thermoplastic resin composition
ATE106314T1 (en) ULTRA-SOFT TEXTILE-LIKE EMBOSSED PLASTIC FILM.
DE69622230D1 (en) Thermoplastic resin composition
NO971059D0 (en) Modified human C3 proteins
AU2761497A (en) Method of manufacturing a sealing element, and sealing element manufactured by that method
FR2729208B1 (en) THERMOPLASTIC MOLDED PART
ES2142446T3 (en) THERMOSTATIC ACTUATOR WITH AN ELECTRIC HEATING ELEMENT AND PROCEDURE FOR INTRODUCING THE ELECTRIC HEATING ELEMENT IN A HOUSING.
DE59501730D1 (en) DEVICE FOR INJECTION MOLDING PLASTIC
ES2117549A1 (en) Improvements to the manufacture of transparent pieces of plastic material with incorporated internal decoration
SE9900575D0 (en) Method of interconnecting two elements
DE69600135D1 (en) Thermoplastic resin composition
DE3885590D1 (en) Rubbery thermoplastic polymer blends.
EP1060878A4 (en) Photocurable sheet, moldings thereof, and processes for producing the same
DE59003899D1 (en) Adhesive for connecting molded parts made of polycarbonate plastics.
DE59806394D1 (en) Device for injection molding plastic parts
DE69110338D1 (en) Thermoplastic resin mixture.
ES2120351A1 (en) An addition to the subject of main patent No. 9502022 for "Improvements to the manufacture of marbles"
DE602005023423D1 (en) DEVICE AND METHOD FOR CONDITIONING PLASTIC OBJECTS
NL1002433C2 (en) Thermoplastic resin composition.
NL1002434A1 (en) Thermoplastic resin composition.

Legal Events

Date Code Title Description
EC2A Search report published

Date of ref document: 19980801

Kind code of ref document: A1

Effective date: 19980801