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3244888
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Information
Patent Grant
3244888
References
Source
Patent Number
3,244,888
Date Filed
Not available
Date Issued
Tuesday, April 5, 1966
58 years ago
CPC
G04C23/36 - by external influences
H01H47/24 - having light-sensitive input
US Classifications
250 - Radiant energy
200 - Electricity: circuit makers and breakers
219 - Electric heating
968 - Horology
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