(19)

(11)

EP 0 172 811 A1

(12)

(43) Date of publication: 05.03.1986 Bulletin 1986/10 (21) Application number: 84901459.0 (22) Date of filing: 21.02.1984

(51) International Patent Classification (IPC):  H03H 9/ 02( . ) (86) International application number: PCT/US1984/000248 (87) International publication number: WO 1985/003816 (29.08.1985 Gazette 1985/19)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (71) Applicant: GTE PRODUCTS CORPORATION Stamford, CT 01923 (US)	(72) Inventor: BUCKINX, Pol B-3610 Diepenbeek (BE) (74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät  Maximilianstrasse 58 D-80538 München D-80538 München (DE)