(19)

(11)

EP 0 120 090 A1

(12)

(43) Date of publication: 03.10.1984 Bulletin 1984/40 (21) Application number: 83903643.0 (22) Date of filing: 29.09.1983

(51) International Patent Classification (IPC):  G08G 1/ 127( . ) (86) International application number: PCT/US1983/001545 (87) International publication number: WO 1984/001458 (12.04.1984 Gazette 1984/10)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 29.09.1982 US 19820427940 (71) Applicant: PHILLIPS, Benjamin U. Grand Rapids MI 49506 (US)	(72) Inventor: PHILLIPS, Benjamin U. Grand Rapids MI 49506 (US)