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2135991
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Information
Patent Grant
2135991
References
Source
Patent Number
2,135,991
Date Filed
Not available
Date Issued
Tuesday, November 8, 1938
85 years ago
CPC
H03J1/187 - the auxiliary power balancing automatically a Wheatstone bridge or the like, that has been unbalanced by the controlling device
G04C23/00 - Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
US Classifications
318 - Electricity: motive power systems
200 - Electricity: circuit makers and breakers
334 - Tuners
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