(19)

(11)

EP 0 717 591 A1

(12)

(43) Date of publication: 26.06.1996 Bulletin 1996/26 (21) Application number: 94926721.0 (22) Date of filing: 06.09.1994

(51) International Patent Classification (IPC):  A01N 37/ 42( . ) A01N 37/ 28( . ) A01N 47/ 42( . ) D06M 16/ 00( . ) A01N 37/ 10( . ) A01N 47/ 08( . ) A01N 55/ 10( . ) (86) International application number: PCT/AU1994/000527 (87) International publication number: WO 1995/007021 (16.03.1995 Gazette 1995/12)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 06.09.1993 AU 1993PM01031 (71) Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION Campbell, Australian Capital Territory 2601 (AU)	(72) Inventor: RUSSELL, Ian, Maxwell Highton, VIC 3126 (AU) (74) Representative: Woods, Geoffrey Corlett  J.A. KEMP & CO. 14 South Square Gray's Inn London WC1R 5LX London WC1R 5LX (GB)