(19)

(11)

EP 0 532 656 A1

(12)

(43) Date of publication: 24.03.1993 Bulletin 1993/12 (21) Application number: 91911672.0 (22) Date of filing: 06.06.1991

(51) International Patent Classification (IPC):  G09F 7/ 00( . ) G09F 7/ 16( . ) (86) International application number: PCT/US1991/004003 (87) International publication number: WO 1991/019285 (12.12.1991 Gazette 1991/28)

(84) Designated Contracting States: DE FR GB IT (30) Priority: 06.06.1990 US 19900534447 (71) Applicant: NELSON, Kenneth, W. Staten Island, NY 10304 (US)	(72) Inventors: NELSON, Kenneth, W. Staten Island, NY 10304 (US) ROGGENBURG, Stanley, L. Staten Island, NY 10304 (US) (74) Representative: Merten, Fritz  Tristanstrasse 5 D-90461 Nürnberg D-90461 Nürnberg (DE)