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(11)

EP 0 668 718 A1

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(43) Date of publication: 30.08.1995 Bulletin 1995/35 (21) Application number: 93920592.0 (22) Date of filing: 10.09.1993

(51) International Patent Classification (IPC):  A01K 67/ 033( . ) A01N 63/ 00( . ) A01N 1/ 00( . ) (86) International application number: PCT/AU1993/000465 (87) International publication number: WO 1994/005150 (17.03.1994 Gazette 1994/07)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 10.09.1992 AU 1992PL04791 (71) Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION Campbell, Australian Capital Territory 2601 (AU)	(72) Inventors: BEDDING, Robin Anthony Flynn, ACT 2615 (AU) BUTLER, Karen Louise Macquarie, ACT 2614 (AU) (74) Representative: Woods, Geoffrey Corlett  J.A. KEMP & CO. 14 South Square Gray's Inn London WC1R 5LX London WC1R 5LX (GB)