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(11)

EP 0 330 682 A1

(12)

(43) Date of publication: 06.09.1989 Bulletin 1989/36 (21) Application number: 88905638.0 (22) Date of filing: 11.07.1988

(51) International Patent Classification (IPC):  B25H 5/ 00( . ) (86) International application number: PCT/AU1988/000254 (87) International publication number: WO 1989/000485 (26.01.1989 Gazette 1989/03)

(84) Designated Contracting States: DE FR GB IT SE (30) Priority: 10.07.1987 AU 19870003036 (71) Applicant: VAN SON, Herman, Peter, Damian Strathmore, VIC 3041 (AU)	(72) Inventor: VAN SON, Herman, Peter, Damian Strathmore, VIC 3041 (AU) (74) Representative: Beresford, Keith Denis Lewis, et al  BERESFORD & Co. 2-5 Warwick Court High Holborn London WC1R 5DJ London WC1R 5DJ (GB)