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(11)

EP 0 688 169 A1

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(43) Date of publication: 27.12.1995 Bulletin 1995/52 (21) Application number: 94910276.0 (22) Date of filing: 10.03.1994

(51) International Patent Classification (IPC):  A01N 63/ 02( . ) A01N 63/ 04( . ) (86) International application number: PCT/AU1994/000110 (87) International publication number: WO 1994/019950 (15.09.1994 Gazette 1994/21)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 10.03.1993 AU 1993PL07721 (71) Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION Campbell, Australian Capital Territory 2601 (AU)	(72) Inventors: WILLIAMSON, Mary, Anna Jindalee, QLD 4074 (AU) AYLWARD, James, Harrison St. Lucia, QLD 4067 (AU) (74) Representative: Hildyard, Edward Martin  Frank B. Dehn & Co. European Patent Attorneys Imperial House 15-19 Kingsway London WC2B 6UZ London WC2B 6UZ (GB)