(19)

(11)

EP 0 740 501 A1

(12)

(43) Date of publication: 06.11.1996 Bulletin 1996/45 (21) Application number: 95906554.0 (22) Date of filing: 27.01.1995

(51) International Patent Classification (IPC):  A01F 25/ 20( . ) B01F 13/ 00( . ) A01K 5/ 00( . ) B01F 15/ 02( . ) (86) International application number: PCT/NL1995/000039 (87) International publication number: WO 1995/020869 (10.08.1995 Gazette 1995/34)

(84) Designated Contracting States: DE NL (30) Priority: 28.01.1994 NL 19940000143 29.03.1994 NL 19940000494 (71) Applicant: LITECH B.V. NL-7521 PD Enschede (NL)	(72) Inventors: LIET, Cornelis Hendricus NL-7581 PJ Losser (NL) LIET, Fredericus B-2382 Poppel (BE) (74) Representative: de Vries, Johannes Hendrik Fokke  De Vries & Metman, Gebouw Autumn, Overschiestraat 184 N 1062 XK Amsterdam 1062 XK Amsterdam (NL)