(19)

(11)

EP 0 333 725 A1

(12)

(43) Date of publication: 27.09.1989 Bulletin 1989/39 (21) Application number: 87907433.0 (22) Date of filing: 12.11.1987

(51) International Patent Classification (IPC):  A62D 1/ 02( . ) A62D 1/ 04( . ) (86) International application number: PCT/GB1987/000809 (87) International publication number: WO 1988/003425 (19.05.1988 Gazette 1988/11)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 12.11.1986 GB 19860026983 (71) Applicant: John Kerr & Co.(M/C) Limited GB-Liverpool L33 7TS (GB)	(72) Inventor: THOMPSON, Gerard Wirral Cheshire L62 9AT (GB) (74) Representative: Low, Peter John, et al  Wilson, Gunn, M'Caw & Co., 41-51 Royal Exchange, Cross Street Manchester, M2 7BD Manchester, M2 7BD (GB)