(19)

(11)

EP 0 574 482 A1

(12)

(43) Date of publication: 22.12.1993 Bulletin 1993/51 (21) Application number: 92906307.0 (22) Date of filing: 09.03.1992

(51) International Patent Classification (IPC):  A61G 3/ 08( . ) (86) International application number: PCT/GB1992/000418 (87) International publication number: WO 1992/015270 (17.09.1992 Gazette 1992/24)

(84) Designated Contracting States: DE FR GB SE (30) Priority: 07.03.1991 GB 19910004790 (71) Applicant: C.N. UNWIN LIMITED Yeovil, Somerset BA22 8SZ (GB)	(72) Inventor: UNWIN, Cecil, Norman Somerset BA22 8SZ (GB) (74) Representative: Lainé, Simon James, et al  Wynne-Jones, Lainé & James 22, Rodney Road Cheltenham Gloucestershire GL50 1JJ Cheltenham Gloucestershire GL50 1JJ (GB)