(19)

(11)

EP 0 137 015 A1

(12)

(43) Date of publication: 17.04.1985 Bulletin 1985/16 (21) Application number: 84900842.0 (22) Date of filing: 28.02.1984

(51) International Patent Classification (IPC):  A62C 2/ 18( . ) E06B 3/ 44( . ) (86) International application number: PCT/AU1984/000029 (87) International publication number: WO 1984/003534 (13.09.1984 Gazette 1984/22)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 01.03.1983 AU 19830008248 (71) Applicant: CRESTLITE ALUMINIUM PTY LTD Geebung, QLD 4034 (AU)	(72) Inventor: HANNAY, Gregory, John, Forsyth Brisbane, QLD (AU) (74) Representative: Brown, John David  FORRESTER & BOEHMERT Franz-Joseph-Strasse 38 D-80801 München D-80801 München (DE)