(19)

(11)

EP 0 662 127 A1

(12)

(43) Date of publication: 12.07.1995 Bulletin 1995/28 (21) Application number: 94908820.0 (22) Date of filing: 09.09.1993

(51) International Patent Classification (IPC):  A01K 67/ 027( . ) (86) International application number: PCT/GB1993/001903 (87) International publication number: WO 1994/005779 (17.03.1994 Gazette 1994/07)

(84) Designated Contracting States: CH DE FR GB LI SE (30) Priority: 09.09.1992 GB 19920019063 14.12.1992 GB 19920026009 (71) Applicants: SEHON, Alec Winnipeg, Manitoba R3N 0E8 (CA) BITOH, Soji Tsukuba City, Ibaraki 305 (JP)	(72) Inventors: SEHON, Alec Winnipeg, Manitoba R3N 0E8 (CA) BITOH, Soji Tsukuba City, Ibaraki 305 (JP) (74) Representative: Greaves, Carol Pauline, et al  Mewburn Ellis York House 23 Kingsway London WC2B 6HP London WC2B 6HP (GB)