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(11)

EP 0 464 060 A1

(12)

(43) Date of publication: 08.01.1992 Bulletin 1992/02 (21) Application number: 90904726.0 (22) Date of filing: 14.03.1990

(51) International Patent Classification (IPC):  H05B 37/ 02( . ) (86) International application number: PCT/AU1990/000103 (87) International publication number: WO 1990/011639 (04.10.1990 Gazette 1990/23)

(84) Designated Contracting States: DE FR GB IT (30) Priority: 21.03.1989 AU 19890003321 (71) Applicants: STOCK, Peter Michael West Lakes, S.A. 5021 (AU) YOUNG, Andrew John Aberfoyle Park, S.A. 5159 (AU)	(72) Inventors: STOCK, Peter Michael West Lakes, S.A. 5021 (AU) YOUNG, Andrew John Aberfoyle Park, S.A. 5159 (AU) (74) Representative: Haffner, Thomas M., Dr., et al  Patentanwalt Schottengasse 3a A-1014 Wien A-1014 Wien (AT)