(19)

(11)

EP 0 440 691 A1

(12)

(43) Date of publication: 14.08.1991 Bulletin 1991/33 (21) Application number: 89911825.0 (22) Date of filing: 27.10.1989

(51) International Patent Classification (IPC):  H05K 3/ 42( . ) H05K 3/ 46( . ) H05K 3/ 18( . ) H05K 3/ 00( . ) (86) International application number: PCT/GB1989/001282 (87) International publication number: WO 1990/004911 (03.05.1990 Gazette 1990/10)

(84) Designated Contracting States: BE DE FR GB IT NL (30) Priority: 27.10.1988 GB 19880025219 (71) Applicant: MORGAN MATERIALS TECHNOLOGY LIMITED Stourport-on-Severn Worchershire DY13 8QR (GB)	(72) Inventors: GUEST, Peter Anthony Portslade, East Sussex BN4 1YH (GB) BETTERIDGE, Ian Arthur Portslade, East Sussex BN4 1YH (GB) (74) Representative: Boff, James Charles, et al  c/o Phillips & Leigh 7 Staple Inn Holborn London WC1V 7QF London WC1V 7QF (GB)