(19)

(11)

EP 0 078 271 A1

(12)

(43) Date of publication: 11.05.1983 Bulletin 1983/19 (21) Application number: 82901291.0 (22) Date of filing: 05.05.1982

(51) International Patent Classification (IPC):  B63B 21/ 22( . ) B63B 21/ 36( . ) B63B 21/ 24( . ) (86) International application number: PCT/AU1982/000066 (87) International publication number: WO 1982/003830 (11.11.1982 Gazette 1982/27)

(84) Designated Contracting States: DE FR GB SE (30) Priority: 05.05.1981 AU 19810008705 (71) Applicant: ROENNHOLM, Karl Johan Tumut, N.S.W. 2720 (AU)	(72) Inventor: ROENNHOLM, Karl Johan Tumut, N.S.W. 2720 (AU)