(19)

(11)

EP 0 141 814 A1

(12)

(43) Date of publication: 22.05.1985 Bulletin 1985/21 (21) Application number: 83903482.0 (22) Date of filing: 23.11.1983

(51) International Patent Classification (IPC):  B63B 21/ 48( . ) B63B 22/ 16( . ) (86) International application number: PCT/AU1983/000170 (87) International publication number: WO 1984/002111 (07.06.1984 Gazette 1984/14)

(84) Designated Contracting States: AT BE CH DE FR GB LI NL SE (30) Priority: 23.11.1982 AU 19820006934 (71) Applicant: ABERNETHY, William John East Melbourne, Victoria 3002 (AU)	(72) Inventor: ABERNETHY, William John East Melbourne, Victoria 3002 (AU) (74) Representative: Connor, Terence Kevin  FITZPATRICKS Kern House 61/62 Lincoln's Inn Fields London WC2B 6EX London WC2B 6EX (GB)