(19)

(11)

EP 0 295 245 A1

(12)

(43) Date of publication: 21.12.1988 Bulletin 1988/51 (21) Application number: 87901003.0 (22) Date of filing: 02.02.1987

(51) International Patent Classification (IPC):  B28B 7/ 18( . ) C04B 18/ 26( . ) C04B 28/ 14( . ) E04C 1/ 40( . ) B28B 7/ 24( . ) C04B 28/ 10( . ) E04B 2/ 14( . ) E04C 2/ 04( . ) (86) International application number: PCT/AU1987/000027 (87) International publication number: WO 1987/004700 (13.08.1987 Gazette 1987/18)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 31.01.1986 AU 19860004396 30.05.1986 AU 19860006196 07.11.1986 AU 19860008863 (71) Applicant: KRUSS, Leon Waverley, NSW 2024 (AU)	(72) Inventor: KRUSS, Leon Waverley, NSW 2024 (AU) (74) Representative: Jones, Michael Raymond, et al  HASELTINE LAKE & CO. Hazlitt House 28 Southampton Buildings Chancery Lane London WC2A 1AT London WC2A 1AT (GB)