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US2804588A
|
|
Power supply apparatus
|
|
US2801349A
|
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Voltage stabilizing and control apparatus
|
|
US2415496A
|
|
Electrical receptacle
|
|
GB599802A
|
|
Improvements in or relating to alternating current supply systems for gaseous discharge tubes
|
|
US2346621A
|
|
Alternating current supply system
|
|
US2329092A
|
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Starting and operating means for gaseous discharge devices
|
|
US2212198A
|
|
Transformer of the constant or limited current type
|
|
US2183228A
|
|
System for starting and operating gaseous discharge devices
|
|
US2143745A
|
|
Constant potential transformer
|
|
US2224885A
|
|
Circuit breaker
|
|
US2173735A
|
|
Electrically operated device
|
|
US2127237A
|
|
Reactor
|
|
US2051622A
|
|
Electrically operated switch
|
|
US2055624A
|
|
Sign cabinet
|
|
US2095294A
|
|
Transformer and the like
|
|
CA399701A
|
|
Current transformer
|
|
CA382780A
|
|
Reactance transformer
|
|
CA411953A
|
|
Electric discharge device starting and operating means
|
|
CA548832A
|
|
Safety system for luminescent tubes
|
|
CA372198A
|
|
Sign cabinet
|
