(19)

(11)

EP 0 807 298 A1

(12)

(43) Date of publication: 19.11.1997 Bulletin 1997/47 (21) Application number: 96901000.0 (22) Date of filing: 23.01.1996

(51) International Patent Classification (IPC):  A62C 99/ 00( . ) G09B 19/ 00( . ) G09B 9/ 00( . ) (86) International application number: PCT/FI1996/000046 (87) International publication number: WO 1996/024121 (08.08.1996 Gazette 1996/36)

(84) Designated Contracting States: BE CH DE DK ES FR GB IT LI NL SE (30) Priority: 31.01.1995 FI 19950000413 (71) Applicant: Simultron Oy 90100 Oulu (FI)	(72) Inventor: KARVONEN, Esa FIN-90310 Oulu (FI) (74) Representative: Öhman, Ann-Marie  Turun Patenttitoimisto Oy, P.O. Box 99 20521 Turku 20521 Turku (FI)