(19)

(11)

EP 0 316 420 A1

(12)

(43) Date of publication: 24.05.1989 Bulletin 1989/21 (21) Application number: 88905155.0 (22) Date of filing: 06.06.1988

(51) International Patent Classification (IPC):  E04D 13/ 14( . ) E04D 13/ 147( . ) (86) International application number: PCT/AU1988/000170 (87) International publication number: WO 1988/009855 (15.12.1988 Gazette 1988/27)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 04.06.1987 AU 19870002345 (71) Applicant: JOHN DEKS HOLDINGS PTY. LTD. Bayswater, VIC 3153 (AU)	(72) Inventor: PEDERSEN, Raymond, Jan Bayswater, VIC 3153 (AU) (74) Representative: Brown, John David  FORRESTER & BOEHMERT Franz-Joseph-Strasse 38 D-80801 München D-80801 München (DE)