(19)

(11)

EP 0 694 183 A1

(12)

(43) Date of publication: 31.01.1996 Bulletin 1996/05 (21) Application number: 94911240.0 (22) Date of filing: 29.03.1994

(51) International Patent Classification (IPC):  G03C 3/ 00( . ) G03B 17/ 04( . ) G03B 17/ 56( . ) G03B 29/ 00( . ) G03B 17/ 02( . ) G03B 17/ 06( . ) G03B 19/ 04( . ) (86) International application number: PCT/GB1994/000670 (87) International publication number: WO 1994/023338 (13.10.1994 Gazette 1994/23)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 02.04.1993 GB 19930006999 (71) Applicant: HATTON, Malcolm Reading, Berkshire RG7 4BB (GB)	(72) Inventor: HATTON, Malcolm Reading, Berkshire RG7 4BB (GB) (74) Representative: Cummings, Sean Patrick  David Keltie Associates Audrey House Ely Place London EC1N 6SN London EC1N 6SN (GB)