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US3580989A
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Subscription television system utilizing a transmission line for conducting each aesthetic quality television program
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US3372291A
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Motor drives for control rods of reactors, and the like
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US3612752A
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Subscription television system which receives either free broadcast signal or pay wired signals
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US3476872A
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Synchronizing and phasing broadband cross-scan tape recordings
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US3271514A
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Recording and playing-back television programs, by wide-band cross-scanning recordings
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US3270762A
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Multiple supply, balanced valve, pressure reducing valves, and the like
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US3478162A
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Dual quality subscription television system
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US3351718A
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Transverse scan magnetic recording using a cathode ray tube recording means
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US3435130A
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Television systems and operations
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US3310624A
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Subscription television system using phase inverted video signals
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US3358079A
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Stereoscopic televsion including means to select either three dimensional or two dimensional reception
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US3330906A
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Radio and television operation
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US3336439A
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Pay television employing interfering sound signal
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US3221759A
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Instruments for controlling operations, to ensure optimum operating conditions of such operations
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US3222452A
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Pre-pay or subscription radio or television operations
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US3217730A
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Multiple supply balanced valve, pressure reducing valves, and the like
|
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US3264502A
|
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Stepping motor drives for control rods for reactors, and the like
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US3058474A
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Cigarette making machines and the like
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US2957964A
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Clutches and the like
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US2943519A
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Transmissions and the like
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