(19)

(11)

EP 0 050 612 A1

(12)

(43) Date of publication: 05.05.1982 Bulletin 1982/18 (21) Application number: 80901090.0 (22) Date of filing: 30.04.1980

(51) International Patent Classification (IPC):  H01C 7/ 04( . ) H05B 3/ 10( . ) (86) International application number: PCT/US1980/000476 (87) International publication number: WO 1981/003238 (12.11.1981 Gazette 1981/27)

(84) Designated Contracting States: AT CH DE FR GB LI LU NL SE (71) Applicant: LEE, Jeoung Kyu South San Francisco, CA 94480 (US)	(72) Inventor: LEE, Jeoung Kyu South San Francisco, CA 94480 (US)