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2402188
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Information
Patent Grant
2402188
References
Source
Patent Number
2,402,188
Date Filed
Not available
Date Issued
Tuesday, June 18, 1946
78 years ago
CPC
H03F3/64 - with tubes only
H01J43/025 - Circuits therefor
US Classifications
379 - Telephonic communications
313 - Electric lamp and discharge devices
330 - Amplifiers
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