(19)

(11)

EP 0 074 351 A1

(12)

(43) Date of publication: 23.03.1983 Bulletin 1983/12 (21) Application number: 81901935.0 (22) Date of filing: 17.03.1981

(51) International Patent Classification (IPC):  H01J 5/ 50( . ) H01J 61/ 36( . ) (86) International application number: PCT/US1981/000365 (87) International publication number: WO 1982/003293 (30.09.1982 Gazette 1982/23)

(84) Designated Contracting States: CH DE FR GB LI LU NL SE (71) Applicant: GUIM, Raul Coral Gables, FL 33134 (US)	(72) Inventor: GUIM, Raul Coral Gables, FL 33134 (US)