(19)

(11)

EP 0 241 504 A1

(12)

(43) Date of publication: 21.10.1987 Bulletin 1987/43 (21) Application number: 86905909.0 (22) Date of filing: 09.10.1986

(51) International Patent Classification (IPC):  G06F 21/ 00( . ) G07F 7/ 10( . ) G07C 9/ 00( . ) G06F 1/ 00( . ) (86) International application number: PCT/GB1986/000610 (87) International publication number: WO 1987/002491 (23.04.1987 Gazette 1987/09)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 11.10.1985 GB 19850025161 (71) Applicant: BLACKWELL, Victor Campbell Merseyside L62 6AN (GB)	(72) Inventor: BLACKWELL, Victor Campbell Merseyside L62 6AN (GB)