(19)

(11)

EP 0 557 387 A1

(12)

(43) Date of publication: 01.09.1993 Bulletin 1993/35 (21) Application number: 91920464.0 (22) Date of filing: 18.11.1991

(51) International Patent Classification (IPC):  E04B 7/ 22( . ) E04D 3/ 362( . ) E04D 3/ 35( . ) E04D 13/ 04( . ) (86) International application number: PCT/AU1991/000525 (87) International publication number: WO 1992/008861 (29.05.1992 Gazette 1992/12)

(84) Designated Contracting States: FR (30) Priority: 16.11.1990 AU 19900003398 (71) Applicant: BUILDING SOLUTIONS PTY. LTD Noosaville, QLD 4566 (AU)	(72) Inventors: EMBLIN, Alan Gayne Noosa Heads, QLD 4567 (AU) KILPATRICK, Ian Alan Eumundi, QLD 4562 (AU) (74) Representative: Stuart, Ian Alexander, et al  MEWBURN ELLIS York House 23 Kingsway London WC2B 6HP London WC2B 6HP (GB)