(19)

(11)

EP 0 169 192 A1

(12)

(43) Date of publication: 29.01.1986 Bulletin 1986/05 (21) Application number: 84900623.0 (22) Date of filing: 12.01.1984

(51) International Patent Classification (IPC):  A01K 1/ 06( . ) A61D 3/ 00( . ) (86) International application number: PCT/GB1984/000006 (87) International publication number: WO 1985/002994 (18.07.1985 Gazette 1985/16)

(84) Designated Contracting States: AT BE CH LI LU NL SE (71) Applicant: STOCKTON ENGINEERING COMPANY LIMITED Birmingham B56 A4 (GB)	(72) Inventor: WOOD, Kenneth, Edwin Near Shrewsbury Shropshire DY5 6LT (GB)