Home| FAQSearch:Advanced|Person|Company| Type|ClassLogin
Quick search:
Patent number:
Patent Date:
All Patents of Type: DC motors
Patents 1 - 15 of 19
First set of recordsNext set of recordsLast set of records
132Feb. 25, 1837T. DavenportImprovement in propelling machinery by magnetism and electro-magnetismDC motors
227,622May 18, 1880W.W. GriscomElectro-Magnetic MotorDC motors
227,623May 18, 1880W.W. GriscomElectro-Magnetic MotorDC motors
227,845May 18, 1880W. SawyerDynamo Electric MachineDC motors
248,435Oct. 18, 1881T.A. EdisonUtilizing Electricity as Motive PowerDC motors
264,982Sep. 26, 1882E. WestonElectro Magnetic MotorDC motors
313,546Mar. 10, 1885F.J. SpragueElectric Dynamic MotorDC motors
316,091Apr. 21, 1885E. WestonElectro-Magnetic MotorDC motors
316,092Apr. 21, 1885E. WestonElectro Magnetic MotorDC motors
324,667Aug. 18, 1885P. DiehlElectric MotorDC motors
356,834Feb. 01, 1887W.W. GriscomElectric MotorDC motors
539,277May 14, 1895J.C. LincolnElectric MotorDC motors
660,908Oct. 30, 1900B.G. LammeVariable-speed electric motorDC motors
792,762Jun. 20, 1905G.S. DunnDynamo Electric MachineDC motors
829,975Sep. 04, 1906J.C. LincolnVariable Speed Electric MotorDC motors
Toggle print mode
Show pictures

Copyright © 2002-2020 - DATAMP