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2514129
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Patent Grant
2514129
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Patent Number
2,514,129
Date Filed
Not available
Date Issued
Tuesday, July 4, 1950
74 years ago
CPC
G10K7/02 - in which the sound-producing member is rotated manually or by a motor
G10K7/00 - Sirens
US Classifications
116 - Signals and indicators
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