(19)

(11)

EP 0 720 518 A1

(12)

(43) Date of publication: 10.07.1996 Bulletin 1996/28 (21) Application number: 94922340.0 (22) Date of filing: 11.08.1994

(51) International Patent Classification (IPC):  B24C 3/ 06( . ) E01H 1/ 00( . ) B24C 3/ 32( . ) (86) International application number: PCT/GB1994/001763 (87) International publication number: WO 1995/005922 (02.03.1995 Gazette 1995/10)

(84) Designated Contracting States: BE DE ES FR IT LU NL (30) Priority: 25.08.1993 GB 19930017637 (71) Applicant: Highway Safety Systems limited Stockport, Cheshire SK12 7JQ (GB)	(72) Inventor: LEE, Gary, Francis Highway Safety Systems Limited Cheshire SK12 7JQ (GB) (74) Representative: Allman, Peter John, et al  MARKS & CLERK, Sussex House, 83-85 Mosley Street Manchester M2 3LG Manchester M2 3LG (GB)