(19)

(11)

EP 0 656 159 A1

(12)

(43) Date of publication: 07.06.1995 Bulletin 1995/23 (21) Application number: 93919454.0 (22) Date of filing: 18.08.1993

(51) International Patent Classification (IPC):  H03J 1/ 00( . ) H03J 1/ 22( . ) (86) International application number: PCT/GB1993/001758 (87) International publication number: WO 1994/005081 (03.03.1994 Gazette 1994/06)

(84) Designated Contracting States: BE DE DK ES FR GB IT NL SE (30) Priority: 19.08.1992 GB 19920017567 (71) Applicant: HOLDEN, Robert Kirkham, Lancashire PR4 2RJ (GB)	(72) Inventor: HOLDEN, Robert Kirkham, Lancashire PR4 2RJ (GB) (74) Representative: Mohun, Stephen John  Appleyard Lees, 15 Clare Road Halifax HX1 2HY Halifax HX1 2HY (GB)