(19)

(11)

EP 0 192 703 A1

(12)

(43) Date of publication: 03.09.1986 Bulletin 1986/36 (21) Application number: 85904351.0 (22) Date of filing: 19.08.1985

(51) International Patent Classification (IPC):  H01H 1/ 02( . ) H01H 1/ 021( . ) (86) International application number: PCT/US1985/001587 (87) International publication number: WO 1986/001636 (13.03.1986 Gazette 1986/06)

(84) Designated Contracting States: BE DE FR GB IT NL SE (30) Priority: 31.08.1984 US 19840646707 01.08.1985 US 19850761402 (71) Applicant: AT&T Corp. New York, NY 10013-2412 (US)	(72) Inventors: HAUSER, Joachim, Jacques Summit, NJ 07901 (US) PLEWES, John, Travis Chatham, NJ 07928 (US) ROBBINS, Murray Berkeley Heights, NJ 07922 (US) (74) Representative: Johnston, Kenneth Graham  AT&T (UK) Ltd. 5 Mornington Road Woodford Green Essex, IG8 OTU Woodford Green Essex, IG8 OTU (GB)