(19)

(11)

EP 0 038 832 A1

(12)

(43) Date of publication: 04.11.1981 Bulletin 1981/44 (21) Application number: 80902107.0 (22) Date of filing: 31.10.1980

(51) International Patent Classification (IPC):  E02B 3/ 06( . ) (86) International application number: PCT/AU1980/000081 (87) International publication number: WO 1981/001275 (14.05.1981 Gazette 1981/12)

(84) Designated Contracting States: CH DE FR LI (30) Priority: 01.11.1979 AU 19790001158 (71) Applicant: EICHHORN, Gregory William Sorrento, Qld. 4217 (AU)	(72) Inventor: EICHHORN, Gregory William Sorrento, Qld. 4217 (AU)