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All Patents in class 346/61
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,117,213Nov. 17, 1914H.B. McCabeTime Controlled Electric Switch and Recording Registertime registers
1,403,044Jan. 10, 1922H.B. McCabeTime Recording Registertime registers
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