(19)

(11)

EP 0 223 777 A1

(12)

(43) Date of publication: 03.06.1987 Bulletin 1987/23 (21) Application number: 86901884.0 (22) Date of filing: 26.03.1986

(51) International Patent Classification (IPC):  H01B 17/ 32( . ) (86) International application number: PCT/FI1986/000031 (87) International publication number: WO 1986/006206 (23.10.1986 Gazette 1986/23)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI NL SE (30) Priority: 15.04.1985 FI 19850001496 (71) Applicant: KAROLON OY SF-00140 Helsinki (FI)	(72) Inventor: KARO, Jorma, H. SF-00140 Helsinki (FI)