(19)

(11)

EP 0 240 486 A1

(12)

(43) Date of publication: 14.10.1987 Bulletin 1987/42 (21) Application number: 85903647.0 (22) Date of filing: 23.07.1985

(51) International Patent Classification (IPC):  B04C 5/ 04( . ) B04C 5/ 081( . ) (86) International application number: PCT/AU1985/000166 (87) International publication number: WO 1986/004271 (31.07.1986 Gazette 1986/17)

(84) Designated Contracting States: AT BE CH DE FR IT LI LU NL SE (30) Priority: 22.01.1985 CA 19850472531 22.01.1985 PH 19850031754 04.04.1985 AU 19850040909 (71) Applicant: CARROLL, Noel Sassafras, VIC 3787 (AU)	(72) Inventor: PRENDERGAST, Gavan, James, Joseph Glen Iris, VIC 3146 (AU) (74) Representative: Day, Jeremy John, et al  REDDIE & GROSE 16 Theobalds Road London, WC1X 8PL London, WC1X 8PL (GB)