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3824345
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Information
Patent Grant
3824345
References
Source
Patent Number
3,824,345
Date Filed
Not available
Date Issued
Tuesday, July 16, 1974
49 years ago
CPC
H04Q1/4465 - the same frequency being used for all signalling information
H03G1/0023 - in emitter-coupled or cascode amplifiers
H03G3/3005 - in amplifiers suitable for low-frequencies
US Classifications
379 - Telephonic communications
333 - Wave transmission lines and networks
381 - Electrical audio signal processing systems and devices
455 - Telecommunications
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