(19)

(11)

EP 0 277 997 A1

(12)

(43) Date of publication: 17.08.1988 Bulletin 1988/33 (21) Application number: 87905811.0 (22) Date of filing: 15.07.1987

(51) International Patent Classification (IPC):  A01K 1/ 01( . ) A01K 1/ 015( . ) (86) International application number: PCT/US1987/001697 (87) International publication number: WO 1988/000434 (28.01.1988 Gazette 1988/03)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 15.07.1986 US 19860885932 (71) Applicant: YANANTON, Patrick Point Pleasant, NJ 08742 (US)	(72) Inventor: YANANTON, Patrick Point Pleasant, NJ 08742 (US) (74) Representative: Ford, Michael Frederick, et al  MEWBURN ELLIS York House 23 Kingsway London WC2B 6HP London WC2B 6HP (GB)