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(11)

EP 0 670 761 A1

(12)

(43) Date of publication: 13.09.1995 Bulletin 1995/37 (21) Application number: 94900631.0 (22) Date of filing: 24.11.1993

(51) International Patent Classification (IPC):  B23K 9/ 173( . ) B23K 35/ 38( . ) B23K 35/ 22( . ) (86) International application number: PCT/AU1993/000596 (87) International publication number: WO 1994/012312 (09.06.1994 Gazette 1994/13)

(84) Designated Contracting States: DE FR GB IT (30) Priority: 24.11.1992 AU 1992PL06007 04.05.1993 AU 1992PL08598 (71) Applicant: OTAVIUS PTY. LTD. Adelaide, S.A. 5000 (AU)	(72) Inventor: PARRY, Alan Lobethal, S.A. 5241 (AU) (74) Representative: Jennings, Nigel Robin, et al  KILBURN & STRODE 30 John Street London WC1N 2DD London WC1N 2DD (GB)