Title:
Prepaid entertainment distribution system
United States Patent 2769023

Inventors:
Loew, David L.
Gottfried, Robert E.
Publication Date:
10/30/1956
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Assignee:
INTERNAT TELEMETER CORP
Primary Class:
725/143
Other Classes:
346/37, 380/227, 348/E07.062, 83/552, 380/240, 725/2, 194/227, 725/7, 725/9
International Classes:
G07F17/28; H04N7/16; G07F17/00
US Patent References:
2000804Coin freed substation for automatic telephone systems
2082561Paystation telephone system
2093988Measured service telephone system
2122550Coin controlled sound reproducing system
2177788Film marking device
2251525Secret television system
2269856Direct current impulse operated selector switch
2338853Remote control system
2352271Teletypewriter pay station circuit
2362244Automatic phonograph control
2433689Coin mechanism
2510046Radio-wire signaling system
2519046Coin control device
2547598Subscription image transmission system and apparatus
2573349Subscriber signaling system
2656406Subscriber television system
2656407Subscriber signaling system
Foreign References:
GB365022A
GB384752A