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2325175
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Information
Patent Grant
2325175
References
Source
Patent Number
2,325,175
Date Filed
Not available
Date Issued
Tuesday, July 27, 1943
80 years ago
CPC
G10K7/02 - in which the sound-producing member is rotated manually or by a motor
Y10T74/19614 - Disconnecting means
US Classifications
116 - Signals and indicators
074 - Machine element or mechanism
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