(19)

(11)

EP 0 614 395 A1

(12)

(43) Date of publication: 14.09.1994 Bulletin 1994/37 (21) Application number: 93918787.0 (22) Date of filing: 27.08.1993

(51) International Patent Classification (IPC):  A63H 33/ 08( . ) A63H 33/ 04( . ) (86) International application number: PCT/AU1993/000440 (87) International publication number: WO 1994/005391 (17.03.1994 Gazette 1994/07)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 28.08.1992 AU 1992PL04354 (71) Applicant: 3D GEOSHAPES AUSTRALIA PTY, LIMITED Sunshine, VIC 3020 (AU)	(72) Inventors: MADNER, Peter Sunshine, VIC 3020 (AU) LANGFORD, John, Rex Sunshine, VIC 3020 (AU) (74) Representative: Bayliss, Geoffrey Cyril, et al  BOULT, WADE & TENNANT 27 Furnival Street London EC4A 1PQ London EC4A 1PQ (GB)