The Rank Organisation Limited

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4498043 Probes for measuring apparatusExpiredJun 23, 82Feb 05, 85[G01R]
4437169 Stage lighting control systemExpiredMay 01, 81Mar 13, 84[H05B, G06F]
4427846 Moving coil loudspeakersExpiredFeb 20, 81Jan 24, 84[H04R]
4342091 Method of determining the coordinates of the center of curvature of the curved surface of a workpieceExpiredJan 03, 80Jul 27, 82[G06F, G01B]
4334282 Testing apparatusExpiredDec 14, 79Jun 08, 82[G06F, G06G]
4315284 Thermal scanning devicesExpiredJul 18, 80Feb 09, 82[H04N]
4279685 Apparatus for use in film splicingExpiredMar 07, 80Jul 21, 81[G03D]
4268865 Continuous motion flying spot telecineExpiredOct 22, 79May 19, 81[H04N]
4266246 Continuous motion telecine apparatus and methodExpiredJan 03, 80May 05, 81[H04N]
4247207 Matrix printerExpiredJan 09, 79Jan 27, 81[B41J]
4234240 Optical scanning system with unwanted reflections controlledExpiredFeb 02, 77Nov 18, 80[G02B]
4227207 CRT film scanner with compensation for local brightness variations of scanning beamExpiredApr 27, 78Oct 07, 80[H04N]
4225251 Electro-mechanical printing apparatusExpiredJan 09, 79Sep 30, 80[B41J]
4218144 Measuring instrumentsExpiredSep 08, 78Aug 19, 80[G01N]
4212845 Analytical apparatusExpiredJul 05, 78Jul 15, 80[G01N]
4205337 Television film scannerExpiredJul 05, 78May 27, 80[H04N]
4202597 Optical scanning system with compensation for unwanted image rotation during scanningExpiredDec 30, 77May 13, 80[G02B]
4191972 Flying spot single field scan telecine apparatusExpiredDec 30, 77Mar 04, 80[H04N]
4184177 Television apparatus for consecutive frame scanning of continuous motion filmExpiredDec 30, 77Jan 15, 80[H04N]

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