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All Patents in class 313/149
Patents 1 - 3 of 3
First set of recordsLast set of records
514,168Feb. 06, 1894N. TeslaMeans for generating electric currents
568,180Sep. 22, 1896N. TeslaApparatus for producing electrical currents of high frequency
1,917,531Jul. 11, 1933J.F. LincolnElectric Arc Welding Apparatuswelders
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