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2031919
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Patent Grant
2031919
References
Source
Patent Number
2,031,919
Date Filed
Not available
Date Issued
Tuesday, February 25, 1936
88 years ago
CPC
H03F13/00 - Amplifiers using amplifying element consisting of two mechanically- or acoustically-coupled transducers
G04D7/06 - for escapements
US Classifications
073 - Measuring and testing
968 - Horology
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