(19)

(11)

EP 0 740 502 A1

(12)

(43) Date of publication: 06.11.1996 Bulletin 1996/45 (21) Application number: 94918450.0 (22) Date of filing: 20.06.1994

(51) International Patent Classification (IPC):  A01G 25/ 14( . ) (86) International application number: PCT/GB1994/001328 (87) International publication number: WO 1995/001718 (19.01.1995 Gazette 1995/04)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IE IT LI NL SE (30) Priority: 03.07.1993 GB 19930013808 19.01.1994 GB 19940000947 (71) Applicant: COLLACH LIMITED Halifax, West Yorkshire HX4 OJA (GB)	(72) Inventor: MCLEAN, Gordon Maxwell Halifax, West Yorkshire HX4 0JA (GB) (74) Representative: Brierley, Anthony Paul, et al  Appleyard Lees 15 Clare Road Halifax West Yorkshire HX1 2HY Halifax West Yorkshire HX1 2HY (GB)