(19)

(11)

EP 0 550 543 A1

(12)

(43) Date of publication: 14.07.1993 Bulletin 1993/28 (21) Application number: 91916935.0 (22) Date of filing: 26.09.1991

(51) International Patent Classification (IPC):  C12N 9/ 22( . ) C12N 15/ 82( . ) C12N 15/ 29( . ) (86) International application number: PCT/AU1991/000445 (87) International publication number: WO 1992/005257 (02.04.1992 Gazette 1992/08)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI NL SE (30) Priority: 26.09.1990 AU 19900002520 (71) Applicant: FB INVESTMENTS PTY LTD Gold Coast, QLD 4229 (AU)	(72) Inventor: TEASDALE, Robert, D. Robina, QLD 4226 (AU) (74) Representative: Patentanwälte Wenzel & Kalkoff  Postfach 73 04 66, Grubesallee 26 D-22124 Hamburg D-22124 Hamburg (DE)