(19)

(11)

EP 0 063 562 A1

(12)

(43) Date of publication: 03.11.1982 Bulletin 1982/44 (21) Application number: 81901019.0 (22) Date of filing: 27.10.1980

(51) International Patent Classification (IPC):  G03B 17/ 42( . ) (86) International application number: PCT/US1980/001432 (87) International publication number: WO 1982/001596 (13.05.1982 Gazette 1982/12)

(84) Designated Contracting States: AT CH DE FR GB LI LU NL SE (71) Applicant: KOVACS, John M. Nashua, NH 03606 (US)	(72) Inventor: KOVACS, John M. Nashua, NH 03606 (US)