(19)

(11)

EP 0 638 192 A1

(12)

(43) Date of publication: 15.02.1995 Bulletin 1995/07 (21) Application number: 93911860.0 (22) Date of filing: 22.04.1993

(51) International Patent Classification (IPC):  G01S 5/ 02( . ) G08B 13/ 14( . ) G01S 13/ 78( . ) (86) International application number: PCT/GB1993/000844 (87) International publication number: WO 1993/022754 (11.11.1993 Gazette 1993/27)

(84) Designated Contracting States: DE ES FR IT NL (30) Priority: 01.05.1992 GB 19920009436 29.07.1992 GB 19920016101 (71) Applicant: MULTILOP LIMITED Watford, Hertfordshire WD2 6PZ (GB)	(72) Inventor: VAHRMAN, Richard 20 First Avenue Hertfordshire WD2 6PZ (GB) (74) Representative: Bibby, William Mark, et al  Mathisen, Macara & co. The Coach House 6-8 Swakeleys Road Ickenham Uxbridge UB10 8BZ Ickenham Uxbridge UB10 8BZ (GB)