(19)

(11)

EP 2 038 680 A1

(12)

(43) Date of publication: 25.03.2009 Bulletin 2009/13 (21) Application number: 07719081.7 (22) Date of filing: 18.06.2007

(51) International Patent Classification (IPC):  G01V 3/10(2006.01) G01V 3/11(2006.01) (86) International application number: PCT/AU2007/000839 (87) International publication number: WO 2007/147199 (27.12.2007 Gazette 2007/52)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 19.06.2006 AU 2006903287 (71) Applicant: Minelab Electronics PTY LTD Torrensville, SA 5031 (AU)	(72) Inventor: MITCHELL, Leon William Hawthorndene, SA 5051 (AU) (74) Representative: Maggs, Michael Norman  Kilburn & Strode 20 Red Lion Street London WC1R 4PJ London WC1R 4PJ (GB)