EP0108093A1 - Procede de fabrication d'un cordage pour raquette, en particulier pour raquette de tennis. - Google Patents

Procede de fabrication d'un cordage pour raquette, en particulier pour raquette de tennis.

Info

Publication number
EP0108093A1
EP0108093A1 EP83901362A EP83901362A EP0108093A1 EP 0108093 A1 EP0108093 A1 EP 0108093A1 EP 83901362 A EP83901362 A EP 83901362A EP 83901362 A EP83901362 A EP 83901362A EP 0108093 A1 EP0108093 A1 EP 0108093A1
Authority
EP
European Patent Office
Prior art keywords
plastic film
winding
string
film tapes
welding
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
EP83901362A
Other languages
German (de)
English (en)
Other versions
EP0108093B1 (fr
Inventor
Herbert Woltron
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.)
Isosport Verbundbauteile GmbH
Original Assignee
Isosport Verbundbauteile GmbH
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 Isosport Verbundbauteile GmbH filed Critical Isosport Verbundbauteile GmbH
Publication of EP0108093A1 publication Critical patent/EP0108093A1/fr
Application granted granted Critical
Publication of EP0108093B1 publication Critical patent/EP0108093B1/fr
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B51/00—Stringing tennis, badminton or like rackets; Strings therefor; Maintenance of racket strings
    • A63B51/02—Strings; String substitutes; Products applied on strings, e.g. for protection against humidity or wear
    • 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
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2936—Wound or wrapped core or coating [i.e., spiral or helical]

Definitions

  • the invention relates to a method for producing a string for ball rackets, in particular for tennis rackets, in which several winding layers of helically wound plastic film strips are applied to one another on a continuously supplied core one above the other along at least approximately concentric cylindrical surfaces, and the winding layers are connected to one another and to the core .
  • the invention further relates to a string made according to the inventive method.
  • a method of the type mentioned above is known from US Pat. No. 3,024,589.
  • a continuously fed nylon thread is impregnated as the core with a liquid binder, then helically wound in two superposed layers with opposite winding directions and the excess binder is stripped off.
  • the wet strand thus formed then passes through heated tubes, is dried and finally pulled off and wound up as a finished string.
  • further pairs of winding layers can be applied to your wet strand, but the strand before each time a pair of wrapping layers is applied, it must be impregnated again with the liquid binder.
  • extruded tapes can also be used as the winding material.
  • the string known from the above-mentioned US Pat. No. 3,024,589 is said to have properties which approximate the intestinal strings used for strings for ball rackets.
  • the production of such intestinal strings is based on sheep or cattle intestines, which are cut into ribbons and subjected to treatment by chemical processes. Several of these tapes are then twisted together to produce the string.
  • These gut strings now have the property that the dependence of the stretch on the applied tensile force is largely linear, i.e. the elastic modulus of the string material is largely constant and therefore also independent of the pretension with which the string was applied to the racket.
  • the curve A for a commercially available gut string shows the dependence of the spring constant EA (in kN) defined by the product of the elastic modulus E and the string cross-sectional area A as a function of the string tension F v (in N).
  • EA the spring constant defined by the product of the elastic modulus E and the string cross-sectional area A as a function of the string tension F v (in N).
  • a disadvantage of casing string covering is, on the one hand, the quality differences that cannot be avoided in their manufacture, which are due to the fluctuations in the quality of the casing material used on the other hand in their high moisture absorption, which, due to the resulting length change, for example in high humidity, adversely affects the availability of rackets with a string of string strings.
  • gut string production is relatively expensive.
  • Plastic strings which mostly consist of a plastic monofilament, now have spring constant characteristics of a type such as that used e.g. given by curve B in Fig. 1:
  • the spring constant E.A. is in the range of the string tension of 200 to 300 N larger than that of comparable gut strings and also increases substantially linearly with increasing tension with a relatively large pitch. The result of this is that the deformations of the covering when the ball strikes the racket are less than with comparable gut stringing and the force peaks to be absorbed by the racket for braking a certain kinetic energy of the ball are correspondingly higher than with gut stringing.
  • a commercially available string made of polyamide (nylon) of the type described in the above-mentioned US Pat. No. 3,024,589 has one against a polyamide monofilament string string does not have an improved spring constant characteristic and, at least in this aspect, does not come close to the properties of gut strings.
  • the invention is based on the object of specifying a method for producing string strings for ball rackets, in particular for tennis rackets, in which a plurality of winding layers of helically wound plastic film strips are applied to one another on a continuously supplied core one above the other along at least approximately concentric cylindrical surfaces and the winding layers are connected to one another is less complex than the known method mentioned in the prior art and leads to string strings which have a similar flat spring tension characteristic to gut strings and which, however, do not suffer from the disadvantages inherent in the gut strings.
  • the object on which the invention is based is achieved in the method according to the invention, which is characterized in that those made of monoaxially stretched plastics are used as plastic film tapes and that after the core is wound with the winding layers, the winding assembly thus produced is passed through a welding zone while under tension , in which the plastic film tapes form a welded connection with one another at elevated temperature.
  • the temperature in the welding zone is advantageously set so high that a weld connection already occurs between the plastic film tapes by this temperature treatment but the tensile strength used in wrapping layers ten monoaxially stretched plastic film tapes is not yet significantly reduced, and advantageously with the result that, in the case of the string at least essentially of a uniform plastic film tapes.
  • the temperature in the welding zone is adjusted so that the reduction in the tear strength of the plastic film tapes during the welding process leads to a tensile strength of the finished string which is not more than 20%, advantageously but not more than 15% below the tensile strength value of the used Plastic film tape lies.
  • the monoaxially stretched plastic film tapes used are those of high molecular weight olefins, which preferably contain polypropylene homopolymers or polypropylene-polyethylene copolymers.
  • those made of polypropylene-polyethylene-diene terpolymers are used as monoaxially stretched plastic film tapes.
  • the material of the plastic film strips used contains a nucleating agent, which can preferably be one based on an organometallic complex compound.
  • nucleating agents increase the number of crystallites in the ribbon material, which, as the applicant has found, reduces the tendency of the monoaxially stretched ribbon tapes used to creep.
  • it in order to prepare for the welding of the winding assembly, it is preheated during its manufacture in one or more preheating devices which are each switched between two successive winding operations, advantageously at least in part of the preheating devices on the surface of the partial winding assembly produced up to that point is smoothed.
  • the invention further relates to the strings produced by the method according to the invention, which have similar favorable properties as gut strings.
  • Fig. 2 shows a schematic representation of a preferred system for producing the string.
  • the system comprises six consecutively arranged, essentially identical winding devices 1 to 6, of which only the winding devices 1, 2 and 6 are shown in FIG. 2, a heated tubular welding device 7, and five preheating nozzles 8 to, each arranged between two successive winding devices 12.
  • the still warm finished string 13 passes through a calibration device 14 consisting of two grooved rollers, is pulled off by a pull-off device 15 in the direction of arrow 16 and is finally wound up at 17.
  • each of the winding devices comprises a rotary star 18 with up to four pivoted and with trigger brakes 19 and with adjustable guide eyes 20 provided coils 21 for the plastic film strips 22.
  • Each rotary star 18 is equipped with a separate drive with a continuously adjustable speed.
  • Fig. 4 shows schematically the winding course of one film strip of the winding layers, which occupy the two outermost layers 23 and 24 of the string. It is explained in more detail with reference to the following description of the embodiment of the invention.
  • the string is formed as follows: in the first winding device 1, to which no pre-strand is fed, one of the wound film tapes 22 receives a twisted structure, to which the remaining two tapes are applied as more or less uniform winding layers.
  • the partial winding assembly 25 thus produced then passes through the first preheating nozzle 8, in which it is warmed up to a temperature at which no welding of the foil tapes occurs, but at which the ribbon material becomes more elastic, as a result of which the surface smoothing of the part taking place in preheating nozzle 8 occurs -Wrapping composite 25 is facilitated.
  • the pre-strand 26 emerging from the first preheating nozzle now serves as the core for the winding layers applied in the subsequent winding devices 2 to 6 along concentric cylindrical surfaces made of overlapping and helically wound foil tapes 22.
  • Fig. 4 shows the winding course of a foil tape 27 and 28 of winding layers, which occupy the two outermost layers 23 and 24 of the string.
  • the pitch of the windings is determined by the take-off speed measured in front of the welding device 7, the speed of the rotary star 18 and the diameter of the respective strand. It increases from winding layer to winding layer from about 45 to 65.
  • the angle .alpha. (FIG. 3), with which the film strip 22 runs towards the winding point 29, is in each case set to a constant value; the location of the winding point 29 is determined by adjusting the position of the guide eyelet 20 accordingly.
  • the ribbon 22 Since, due to the action of the trigger brakes 19, the ribbon 22 is under tension during winding and because of the helical winding structure, there is a not inconsiderable contact pressure between the wound ribbon 22 and the pre-strand 25 serving as the winding substrate, which in the pre-connected preheating nozzle to a temperature below the Brought welding temperature and smoothed the surface.
  • These pre-strands each form compact winding structures which do not contain any significant air pockets.
  • the winding assembly 30 running from the last winding device 6 now passes through the welding device 7, in which a temperature in the range between 220 ° C and 260 ° C prevails.
  • the preheated winding assembly 30 is brought to a temperature at which the film strips lying flat against one another and - as explained further above - are pressed together within this assembly Chen 22 weld well together, but their anisotropy due to the cold deformation in the film material is not significantly disturbed, which means that the tensile strength of the film strips used is not significantly reduced by this temperature treatment. That affects the present
  • the still warm string 13 running from the welding device 7 then passes through the calibration device 14, in which it is calibrated to a diameter of 1.20 mm in the present production example, after which it is pulled off the take-off device 15 in a largely cooled state and wound up at 17 becomes.
  • the finished string 13 has a spring constant characteristic according to curve C shown in FIG. 1. As you can see, here is the area of string pretension that is mainly considered in practice
  • Example D 1 In production examples C 2 , C 3 , D 1 and D 2 , the same polypropylene-polyethylene diene terpolymer is used as the film base material as in production example C 1 described above, with a different degree of stretching of the film strips used: 1: 6, 5 (for C 1 , C 2 and C 3 ) and 1: 8 (for D 1 and D 2 ). Furthermore, in deviation from the other examples in Example D 1 , only five winding layers are applied instead of six.
  • the polypropylene homopolymer used as the film material according to Example E contains about 1% of the nucleating agent of the type PP-78040 based on an organometallic complex compound, as supplied by Gabriel-Chemie, Vienna.
  • the strings according to the production examples C 2 and C 3 like the string according to the example C 1 , have a spring tension characteristic according to curve C in FIG. 1, the strings according to the examples D 1 and D 2 have a characteristic according to curve D and the string according to example E, the curve correspondingly designated E.
  • the string made according to the method of the invention can be used particularly advantageously for tennis racket stringing.
  • the properties of such a stringing approximate those of a gut string stringing.
  • the production costs of the string according to the invention are, however, considerably lower than those of a corresponding gut string.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Laminated Bodies (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

Dans le procédé de fabrication d'un cordage, plusieurs couches de bandelettes (22) en matière synthétique sont enroulées successivement et coaxialement en hélice sur la surface cylindrique d'un noyau continu. L'enroulement (3) ainsi produit est conduit sous tension dans une zone de soudage (7) dans laquelle les bandelettes (22) de matière synthétique sont mutuellement assemblées par soudage. La température de la zone de soudage est réglée assez haute pour qu'un soudage entre les bandelettes (22) soit produit mais sans que la résistance à la rupture des bandelettes (22) soit sensiblement diminuée par ce traitement thermique. La matière convenant pour les bandelettes sont des oléfines comme des polypropylènes homopolymères ou des polypropylènes-polyéthylènes-diènes terpolymères. Pour diminuer la tendance au fluage, la matière constituant les bandelettes peut contenir un agent de nucléation. Les caractéristiques du cordage ainsi fabriqué sont analogues à celles de la corde en boyau.
EP83901362A 1982-05-12 1983-05-13 Procede de fabrication d'un cordage pour raquette, en particulier pour raquette de tennis Expired EP0108093B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0185882A AT389642B (de) 1982-05-12 1982-05-12 Verfahren zur herstellung einer bespannungssaite fuer ballschlaeger, insbesondere fuer tennisschlaeger
AT1858/82 1982-05-12

Publications (2)

Publication Number Publication Date
EP0108093A1 true EP0108093A1 (fr) 1984-05-16
EP0108093B1 EP0108093B1 (fr) 1987-09-09

Family

ID=3522524

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83901362A Expired EP0108093B1 (fr) 1982-05-12 1983-05-13 Procede de fabrication d'un cordage pour raquette, en particulier pour raquette de tennis

Country Status (8)

Country Link
US (1) US4568415A (fr)
EP (1) EP0108093B1 (fr)
JP (1) JPS59500822A (fr)
AT (2) AT389642B (fr)
AU (1) AU559233B2 (fr)
DE (1) DE3373436D1 (fr)
IT (1) IT1163341B (fr)
WO (1) WO1983003998A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT388301B (de) * 1984-11-09 1989-06-12 Isosport Verbundbauteile Verfahren zum herstellen einer bespannungssaite in lieferform fuer ballschlaeger, danach hergestellte bespannungssaite sowie verfahren zum bespannen von ballschlaegern mit dieser saite
US5327714A (en) * 1992-07-30 1994-07-12 Prince Manufacturing, Inc. Synthetic string for sporting application
DE4242673A1 (de) * 1992-12-17 1994-06-23 Siegfried Kuebler Saitenstrang oder Saite zum Bespannen eines Schlägers für Ballspiele
US6506134B2 (en) 1997-06-25 2003-01-14 Fabio Paolo Bertolotti Interlocking string network for sports rackets
US6132325A (en) * 1997-06-25 2000-10-17 Bertolotti; Fabio P Interlocking string network for sport rackets
US6499524B1 (en) * 1999-09-07 2002-12-31 Berol Corporation Dispenser for applying a material to a surface
US6601631B1 (en) * 1999-09-07 2003-08-05 Berol Corporation Dispenser for applying a material to a surface
US20060084532A1 (en) * 2004-10-20 2006-04-20 Chaokang Chu Strings for racquets
CN102177284B (zh) * 2008-10-07 2014-06-11 帝斯曼知识产权资产管理有限公司 聚烯烃纤维
CN104233547A (zh) * 2013-06-20 2014-12-24 郑州中远防务材料有限公司 单纱、单纱制品及其制备方法
PT3325710T (pt) * 2015-07-22 2023-02-14 Teufelberger Fiber Rope Gmbh Corda feita de material de fibra têxtil

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB775093A (en) * 1956-03-06 1957-05-22 Dunlop Rubber Co Improvements in cords
US3050431A (en) * 1958-07-07 1962-08-21 Ashaway Line & Twine Mfg Manufacture of tennis strings
US3164952A (en) * 1962-07-03 1965-01-12 Dunlop Rubber Co Method of making tennis cords
AT359882B (de) * 1977-05-02 1980-12-10 Fischer Gmbh Bespannungssaite aus kunststoff fuer ball- schlaeger, insbesondere tennisschlaeger
DE2805066A1 (de) * 1977-02-10 1978-08-17 Fischer Gmbh Verfahren zur herstellung von bespannungssaiten aus kunststoff fuer ballschlaeger, insbesondere tennisschlaeger
US4168606A (en) * 1977-05-31 1979-09-25 The Goodyear Tire & Rubber Company Process for forming string
US4275117A (en) * 1977-09-02 1981-06-23 Ashaway Line & Twine Mfg. Co. String construction produced by subjecting a fibrous strand composed of fibrous materials having differing melting points to heating conditions sufficient to melt some but not all of the fibrous materials
JPS5519107A (en) * 1978-07-27 1980-02-09 Kureha Chemical Ind Co Ltd Gut and its preparation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8303998A1 *

Also Published As

Publication number Publication date
AT389642B (de) 1990-01-10
AU1557183A (en) 1983-12-02
AU559233B2 (en) 1987-02-26
IT1163341B (it) 1987-04-08
WO1983003998A1 (fr) 1983-11-24
ATA185882A (de) 1989-06-15
IT8321032A0 (it) 1983-05-11
IT8321032A1 (it) 1984-11-11
JPS59500822A (ja) 1984-05-10
US4568415A (en) 1986-02-04
EP0108093B1 (fr) 1987-09-09
JPH0238703B2 (fr) 1990-08-31
DE3373436D1 (en) 1987-10-15
ATE29427T1 (de) 1987-09-15

Similar Documents

Publication Publication Date Title
DE69010840T2 (de) Sterile chirurgische Nadel-Nähfaden-Zusammensetzung.
DE69726394T2 (de) Zahnseideartikel
DE69212744T2 (de) Nahtlosen Schlauser zur Herstellung von Dachlatten
DE2232281B2 (de) Vorrichtung zum Zusammenführen zweier Fadenbündel
EP0108093B1 (fr) Procede de fabrication d'un cordage pour raquette, en particulier pour raquette de tennis
DE2118316B2 (de) Verfahren und vorrichtung zur kontinuierlichen herstellung hochverstreckter polyaethylenterephthalat- faeden
DE1817730A1 (de) Verstaerkungsband zur Verwendung als textile Verstaerkungseinlage in Gummiartikeln und Verfahren zu seiner Herstellung
DE1660223C3 (de) Verfahren zur Herstellung endloser fadenartiger Gebilde mit thermoplastischen Kunststoffen
DE2264105A1 (de) Verfahren und vorrichtung zum herstellen von langgestreckten verseilten koerpern, insbesondere elektrischen kabeln
DE1807145A1 (de) Verfahren zum Fibrillieren von Faeden
DE3833415C2 (de) Verfahren zur Herstellung eines wärmerückstellbaren Bandes
DE2328639A1 (de) Verfahren und vorrichtung zur herstellung schrumpfarmer folienbaendchen
DE2805066A1 (de) Verfahren zur herstellung von bespannungssaiten aus kunststoff fuer ballschlaeger, insbesondere tennisschlaeger
EP0202267B1 (fr) Procede de fabrication d'une corde pour raquette, corde obtenue par ce procede et procede pour corder une raquette avec cette corde
DE2902525A1 (de) Verfahren zur herstellung von monofilaments
DE1785172A1 (de) Verfahren und Vorrichtung zum Kraeuseln von Faeden
EP3246437B1 (fr) Dispositif de blocage d'une petite bande fibrillee
DE1807954A1 (de) Verfahren zur Herstellung von Baendern aus Polyolefinen
DE2611837A1 (de) Verstaerkung bzw. versteifung fuer elastomere gegenstaende
DE1660552C3 (de) Verfahren zum Herstellen eines Garns, einer Schnur bzw. einer Kordel
WO1998016572A1 (fr) Corps façonne faiblement fibrille
DE1660465A1 (de) Textil-Verbesserungen
DE918833C (de) Verfahren zur Herstellung von Faeden, Draehten, Baendchen u. dgl. aus hitzeempfindlichen, polymeren Vinylverbindungen in zwei Stufen
CH313871A (de) Einrichtung mit mindestens einem Körper aus Dauermagnetmaterial
DE2505710A1 (de) Fasergebilde aus folienfasern, verfahren und vorrichtung zu ihrer herstellung und ihre verwendung auf dem textil- und anderen gebieten

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB LI NL SE

17P Request for examination filed

Effective date: 19840521

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB LI NL SE

REF Corresponds to:

Ref document number: 29427

Country of ref document: AT

Date of ref document: 19870915

Kind code of ref document: T

ET Fr: translation filed
REF Corresponds to:

Ref document number: 3373436

Country of ref document: DE

Date of ref document: 19871015

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19880531

Ref country code: CH

Effective date: 19880531

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EAL Se: european patent in force in sweden

Ref document number: 83901362.0

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20020430

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20020502

Year of fee payment: 20

Ref country code: GB

Payment date: 20020502

Year of fee payment: 20

Ref country code: AT

Payment date: 20020502

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020511

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020513

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20020527

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20030512

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20030513

Ref country code: AT

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20030513

BE20 Be: patent expired

Owner name: *ISOSPORT VERBUNDBAUTEILE G.M.B.H.

Effective date: 20030513

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

EUG Se: european patent has lapsed
NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20030513