(19)

(11)

EP 0 465 552 A1

(12)

(43) Date of publication: 15.01.1992 Bulletin 1992/03 (21) Application number: 90905736.0 (22) Date of filing: 29.03.1990

(51) International Patent Classification (IPC):  G09F 3/ 00( . ) G09F 3/ 02( . ) G09F 3/ 10( . ) (86) International application number: PCT/SE1990/000204 (87) International publication number: WO 1990/012383 (18.10.1990 Gazette 1990/24)

(84) Designated Contracting States: AT BE CH DE ES FR GB IT LI LU NL SE (30) Priority: 31.03.1989 SE 19890001125 (71) Applicants: MELIN, Per S-602 23 Norrköping (SE) ACKERFORS, Christian S-602 14 Norrköping (SE)	(72) Inventors: MELIN, Per S-602 23 Norrköping (SE) ACKERFORS, Christian S-602 14 Norrköping (SE) (74) Representative: Willquist, Bo Lorentz  Albihn Willquist AB S:t Larsgatan 23 S-582 24 Linköping S-582 24 Linköping (SE)