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2454789
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Information
Patent Grant
2454789
References
Source
Patent Number
2,454,789
Date Filed
Not available
Date Issued
Tuesday, November 30, 1948
75 years ago
CPC
H03J1/20 - the auxiliary power being switched on as long as controlling current is switched on
H03J7/32 - with simultaneous display of received frequencies
US Classifications
455 - Telecommunications
192 - Clutches and power-stop control
318 - Electricity: motive power systems
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