(19)

(11)

EP 0 424 409 A1

(12)

(43) Date of publication: 02.05.1991 Bulletin 1991/18 (21) Application number: 89907048.0 (22) Date of filing: 20.06.1989

(51) International Patent Classification (IPC):  G01C 3/ 06( . ) G01S 17/ 89( . ) G01S 17/ 08( . ) H04N 5/ 232( . ) (86) International application number: PCT/AU1989/000263 (87) International publication number: WO 1989/012837 (28.12.1989 Gazette 1989/30)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 20.06.1988 AU 19880008876 (71) Applicant: AJAY, Kemal Oakleigh, VIC 3166 (AU)	(72) Inventor: AJAY, Kemal Oakleigh, VIC 3166 (AU) (74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät  Maximilianstrasse 58 D-80538 München D-80538 München (DE)