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All Patents in class 310/138
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
660,908Oct. 30, 1900B.G. LammeVariable-speed electric motorDC motors
1,201,837Oct. 17, 1916J.C. LincolnPortable Means for Securing the Reverse Flow of Electric Currentelectrical devices
1,298,966Apr. 01, 1919J.S. KnowlsonElectrically-operated toolimpact riveters
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