(19)

(11)

EP 0 293 397 A1

(12)

(43) Date of publication: 07.12.1988 Bulletin 1988/49 (21) Application number: 87906194.0 (22) Date of filing: 17.09.1987

(51) International Patent Classification (IPC):  G06K 9/ 46( . ) (86) International application number: PCT/GB1987/000649 (87) International publication number: WO 1988/002158 (24.03.1988 Gazette 1988/07)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 18.09.1986 GB 19860022497 18.08.1987 GB 19870019450 (71) Applicant: LEAVERS, Violet Frances London W4 (GB)	(72) Inventor: LEAVERS, Violet Frances London W4 (GB) (74) Representative: Beresford, Keith Denis Lewis, et al  BERESFORD & Co. 2-5 Warwick Court High Holborn London WC1R 5DJ London WC1R 5DJ (GB)