(19)

(11)

EP 0 493 465 A1

(12)

(43) Date of publication: 08.07.1992 Bulletin 1992/28 (21) Application number: 90914230.0 (22) Date of filing: 18.09.1990

(51) International Patent Classification (IPC):  B65D 33/ 34( . ) (86) International application number: PCT/GB1990/001432 (87) International publication number: WO 1991/004199 (04.04.1991 Gazette 1991/08)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (30) Priority: 18.09.1989 GB 19890021108 (71) Applicant: NMC SECURITY PRODUCTS LIMITED London EC1Y 1BQ (GB)	(72) Inventors: HODGES, William 25 City Road London EC1Y 1BQ (GB) BALDWIN, Paul Richard London EC1Y 1BQ (GB) (74) Representative: Shindler, Nigel  Batchellor, Kirk & Co. 2 Pear Tree Court Farringdon Road London EC1R 0DS London EC1R 0DS (GB)