(19)

(11)

EP 0 227 665 A1

(12)

(43) Date of publication: 08.07.1987 Bulletin 1987/28 (21) Application number: 85904189.0 (22) Date of filing: 08.08.1985

(51) International Patent Classification (IPC):  G09B 15/ 02( . ) (86) International application number: PCT/US1985/001507 (87) International publication number: WO 1987/000952 (12.02.1987 Gazette 1987/04)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (71) Applicant: BEATTIE, John Robert New York, NY 10025 (US)	(72) Inventor: BEATTIE, John Robert New York, NY 10025 (US) (74) Representative: Kehl, Günther, Dipl.-Phys.  Patentanwälte Hagemann & Kehl Postfach 86 03 29 D-81630 München D-81630 München (DE)