(19)

(11)

EP 0 575 608 A1

(12)

(43) Date of publication: 29.12.1993 Bulletin 1993/52 (21) Application number: 93904384.0 (22) Date of filing: 13.01.1993

(51) International Patent Classification (IPC):  A01J 7/ 00( . ) A01J 5/ 08( . ) A01J 5/ 017( . ) A01K 1/ 12( . ) (86) International application number: PCT/NL1993/000012 (87) International publication number: WO 1993/013651 (22.07.1993 Gazette 1993/18)

(84) Designated Contracting States: AT BE CH DE DK FR GB IE IT LI NL SE (30) Priority: 13.01.1992 NL 19920000051 (71) Applicant: PROLION B.V. NL-2141 BS Vijfhuizen (NL)	(72) Inventors: OOSTERLING, Pieter Adriaan NL-2151 CP Nieuw-Vennep (NL) AURIK, Erik Arnoldus NL-2023 DZ Haarlem (NL) (74) Representative: Hoorweg, Petrus Nicolaas, et al  Arnold & Siedsma, Advocaten en Octrooigemachtigden, Sweelinkplein 1 NL-2517 GK Den Haag NL-2517 GK Den Haag (NL)