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US3192703A
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Automatically rate regulated timepieces
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US3106819A
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Automaticaly rate regulated timepiece
|
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US2992526A
|
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Timepiece mechanism
|
|
US3039262A
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Timepiece regulating mechanism
|
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US2927421A
|
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Timepiece mechanism
|
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US2949728A
|
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Clock
|
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US2889680A
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Self-correcting clock
|
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US3039261A
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Clock setting and regulating means
|
|
US2599048A
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Antenna rotating and/or tuning apparatus
|
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US2665543A
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Electromechanical clock
|
|
US2651168A
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|
Time synchronizing mechanism
|
|
US2738642A
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Time system
|
|
US2540076A
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Radio cycle summation measuring apparatus
|
|
US2402380A
|
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Synchronous motor
|
|
US2377618A
|
|
Electric clock
|
|
US2353815A
|
|
Heating plant
|
|
US2377617A
|
|
Electric clock system
|
|
US2313466A
|
|
Electric clock system
|
|
US2359973A
|
|
Electric clock system
|
|
US2248165A
|
|
Sustained power electric clock
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