(19)

(11)

EP 0 177 586 A1

(12)

(43) Date of publication: 16.04.1986 Bulletin 1986/16 (21) Application number: 85901926.0 (22) Date of filing: 19.04.1985

(51) International Patent Classification (IPC):  E04D 13/ 147( . ) (86) International application number: PCT/AU1985/000086 (87) International publication number: WO 1985/004923 (07.11.1985 Gazette 1985/24)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 19.04.1984 AU 19840004664 (71) Applicant: AQUARIUS RUBBER PTY. LTD. Scoresby, VIC (AU)	(72) Inventor: SCHALLE, Werner, Ernst East Malvern, VIC (AU)