(19)

(11)

EP 0 582 597 A1

(12)

(43) Date of publication: 16.02.1994 Bulletin 1994/07 (21) Application number: 92908975.0 (22) Date of filing: 29.04.1992

(51) International Patent Classification (IPC):  A63C 19/ 12( . ) (86) International application number: PCT/GB1992/000784 (87) International publication number: WO 1992/019335 (12.11.1992 Gazette 1992/28)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI NL SE (30) Priority: 02.05.1991 GB 19910009479 (71) Applicants: JOHNSON-MARSHALL, Jremy Bristol BS2 8EZ (GB) WEBB, Stephen Robert Nailsworth, Gloucestershire GL6 0AE (GB) POLLARD, Neil Geoffrey Combe Down, Bath BA2 5EJ (GB)	(72) Inventors: JOHNSON-MARSHALL, Jremy Bristol BS2 8EZ (GB) WEBB, Stephen Robert Nailsworth, Gloucestershire GL6 0AE (GB) POLLARD, Neil Geoffrey Combe Down, Bath BA2 5EJ (GB) (74) Representative: Harding, Richard Patrick, et al  A.R. Davies & Co. 27 Imperial Square Cheltenham GL50 1RQ Cheltenham GL50 1RQ (GB)