Edison, His Life and Inventions [370]
Fitting and Fixtures for Electric Lamps. . . . . . . . . . . . . . . . .March 8, 1881 248,419 Electric Lamp. . . . . . . . . . . . March 30, 1881 251,542 System of Electric Light . . . . . . April 19, 1881 263,145 Making Incandescents . . . . . . . . April 19, 1881 266,447 Electric Incandescent Lamp . . . . . April 21, 1881 251,552 Underground Conductors . . . . . . . April 22, 1881 476,531 Electric Lighting System . . . . . . April 22, 1881 248,436 Depositing Cell for Plating the Connections of Electric Lamps. . . . . . . . . . . May 17, 1881 251,539 Electric Lamp. . . . . . . . . . . . . May 17, 1881 263,136 Regulator for Dynamo or Magneto Electric Machine . . . . . . . . . . . May 17, 1881 251,557 Webermeter . . . . . . . . . . . . . . May 19, 1881 263,134 Regulator for Magneto Electric Machine. . . . . . . . . . . . . . . . May 19, 1881 251,541 Electro Magnetic Motor . . . . . . . . May 20, 1881 251,544 Manufacture of Electric Lamps. . . . . May 20, 1881 251,549 Electric Lamp and the Manufacture thereof. . . . . . . . . . . . . . . . May 20, 1881 251,558 Webermeter . . . . . . . . . . . . . . May 20, 1881 341,644 Incandescent Electric Lamp . . . . . . May 20, 1881 251,551 System of Electric Lighting. . . . . . May 21, 1881 263,137 Electric Chandelier. . . . . . . . . . May 21, 1881 263,141 Straightening Carbons for Incandescent Lamps. . . . . . . . . . . . . . . . . May 21, 1881 264,657 Incandescent Electric Lamps. . . . . . May 21, 1881 251,543 Electric Lamp. . . . . . . . . . . . . May 24, 1881 251,538 Electric Light . . . . . . . . . . . . May 27, 1881 425,760 Measurement of Electricity in Distribution System . . . . . . . . . . . . . . . .May 3 1, 1881 251,547 Electrical Governor. . . . . . . . . . June 2, 1881 263,150 Magneto or Dynamo Electric Machines. June 3, 1881 263,131 Magnetic Ore Separator . . . . . . . . June 4, 1881 435,687 Means for Charging and Using Secondary Batteries. . . . . . . . . . . . . . .June 21, 1881 263,143 Magneto or Dynamo Electric Machines. .June 24, 1881 251,537 Dynamo Electric Machine. . . . . . . .June 25, 1881 263,147 Vacuum Apparatus . . . . . . . . . . .July 1, 188 1 439,389 Electric Lighting System . . . . . . . July 1, 1881 263,149 Commutator for Dynamo or Magneto Electric Machines. . . . . . . . . . .July 22, 1881 479,184 Facsimile Telegraph--Edison and Kenny.July 26, 1881 400,317 Ore Separator. . . . . . . . . . . . .Aug. 11, 1881 425,763 Commutator for Dynamo Electric Machines . . . . . . . . . . . . . . .Aug. 20, 1881 263,133 Dynamo or Magneto Electric Machine . .Aug. 24, 1881 263,142 Electrical Distribution System . . . .Aug. 24, 1881 264,647 Dynamo or Magneto Electric Machines. .Aug. 24, 1881 404,902 Electrical Distribution System . . . .Aug. 24, 1881 257,677 Telephone. . . . . . . . . . . . . . .Sept. 7, 1881 266,021 Telephone. . . . . . . . . . . . . . .Sept. 7, 1881 263,144 Mold for Carbonizing Incandescents . Sept. 19, 1881 265,774 Maintaining Temperatures in Webermeters. . . . . . . . . . . . . Sept. 21, 1881 264,648 Dynamo or Magneto Electric Machines. Sept. 23, 1881 265,776 Electric Lighting System . . . . . . Sept. 27, 1881 524,136 Regulator for Dynamo Electrical Machines . . . . . . . . . . . . . . Sept. 27, 1881 273,715 Malleableizing Iron. . . . . . . . . . Oct. 4, 1881 281,352 Webermeter . . . . . . . . . . . . . . Oct. 5, 1881 446,667 Locomotives for Electric Railways. . .Oct. 11, 1881 288,318 Regulator for Dynamo or Magneto Electric Machines. . . . . . . . . . .Oct. 17, 1881 263,148 Dynamo or Magneto Electric Machines. Oct. 25, 1881 264,646 Dynamo or Magneto Electric Machines. Oct. 25, 1881 251,559 Electrical Drop Light. . . . . . . . .Oct. 25, 1881 266,793 Electric Distribution System . .