(19)

(11)

EP 0 398 889 A1

(12)

(43) Date of publication: 28.11.1990 Bulletin 1990/48 (21) Application number: 89900170.0 (22) Date of filing: 01.12.1988

(51) International Patent Classification (IPC):  A62D 3/ 11( . ) A62D 3/ 38( . ) A62D 101/ 22( . ) A62D 3/ 34( . ) B09B 3/ 00( . ) (86) International application number: PCT/AU1988/000466 (87) International publication number: WO 1989/005172 (15.06.1989 Gazette 1989/13)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 02.12.1987 AU 19870005705 17.08.1988 AU 19880009937 (71) Applicant: THE UNIVERSITY OF SYDNEY Sydney, New South Wales 2006 (AU)	(72) Inventors: BEATTIE, James Sydney, NSW 2006 (AU) KAZIRO, Robert Sydney, NSW 2006 (AU) LAY, Peter Sydney, NSW 2006 (AU) (74) Representative: Collier, Jeremy Austin Grey, et al  J.A.KEMP & CO. 14, South Square Gray's Inn London WC1R 5LX London WC1R 5LX (GB)