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All Patents of Type: electrical devices
Patents 1 - 15 of 47
First set of recordsNext set of recordsLast set of records
159,028Jan. 26, 1875G.F. GreenImprovement in electro-magnetic dental toolselectrical devices
372,012Oct. 25, 1887I.W. ColburnElectrical resistance-boardelectrical devices
413,292Oct. 22, 1889E. ThomsonElectric measuring-instrumentelectrical devices
442,705Dec. 16, 1890A.W. MestonElectric meterelectrical devices
470,204Mar. 08, 1892C.R. Meston, A.W. MestonElectric cut-out and safety deviceelectrical devices
505,541Sep. 26, 1893G.S. StrongForging and bending dieelectrical devices
530,597Dec. 11, 1894A.W. MestonAlternating-current transformerelectrical devices
626,927Jun. 13, 1899C.C. PerkinsIncandescent-lamp socketelectrical devices
628,957Jul. 18, 1899J.W. PackardElectric transformerelectrical devices
829,974Sep. 04, 1906J.C. LincolnElectrically Operated Mine Door Actuating Mechanismelectrical devices
838,547Dec. 18, 1906A. KimbleElectric motor and method of controlling the sameelectric motors
928,394Jul. 20, 1909H.I. Finch, C.R. MestonRheostatelectrical devices
957,587May 10, 1910H. WeichselStarting device for electrical motorselectrical devices
969,805Sep. 13, 1910C.T. PrattOutlet-boxelectrical devices
1,050,960Jan. 21, 1913J.C. LincolnElectrical Reciprocating Mechanismelectrical devices
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