(19)

(11)

EP 0 608 292 A1

(12)

(43) Date of publication: 03.08.1994 Bulletin 1994/31 (21) Application number: 92921231.0 (22) Date of filing: 13.10.1992

(51) International Patent Classification (IPC):  A01K 1/ 015( . ) B32B 29/ 00( . ) (86) International application number: PCT/GB1992/001874 (87) International publication number: WO 1993/007965 (29.04.1993 Gazette 1993/11)

(84) Designated Contracting States: CH DE FR GB IT LI NL (30) Priority: 17.10.1991 GB 19910022039 30.06.1992 GB 19920013890 (71) Applicant: ICHOR LIMITED Huntingdon, Cambridgeshire PE18 6XZ (GB)	(72) Inventor: FARMER, Harley Cambridge PE18 0HW (GB) (74) Representative: Connor, Terence Kevin  Maguire & Co. 12 The Broadway St. Ives Cambridge PE17 4BN St. Ives Cambridge PE17 4BN (GB)