(19)

(11)

EP 0 183 777 A1

(12)

(43) Date of publication: 11.06.1986 Bulletin 1986/24 (21) Application number: 85902791.0 (22) Date of filing: 14.05.1985

(51) International Patent Classification (IPC):  H01J 29/ 39( . ) H01J 31/ 28( . ) (86) International application number: PCT/US1985/000874 (87) International publication number: WO 1985/005527 (05.12.1985 Gazette 1985/26)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 14.05.1984 US 19840610114 18.12.1984 US 19840683245 (71) Applicant: NUDELMAN, Sol Avon, CT 06001 (US)	(72) Inventor: NUDELMAN, Sol Avon, CT 06001 (US) (74) Representative: Hayward, Denis Edward Peter, et al  Lloyd Wise, Tregear & Co. Norman House 105-109 Strand London WC2R 0AE London WC2R 0AE (GB)