(19)

(11)

EP 0 367 801 A1

(12)

(43) Date of publication: 16.05.1990 Bulletin 1990/20 (21) Application number: 89901123.0 (22) Date of filing: 19.12.1988

(51) International Patent Classification (IPC):  G06K 15/ 12( . ) (86) International application number: PCT/GB1988/001136 (87) International publication number: WO 1989/005729 (29.06.1989 Gazette 1989/14)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI NL SE (30) Priority: 19.12.1987 GB 19870029645 (71) Applicant: COATS VIYELLA TECHNOLOGIES LIMITED Manchester M1 4ET (GB)	(72) Inventor: FERGUSON, Willard Glasgow G2 5PA (GB) (74) Representative: Ferguson, James MacKay  J.M. Ferguson & Co. Beresford House 5/6, Claremont Terrace Glasgow G3 7XR Glasgow G3 7XR (GB)