PATENTS - 5

PATENTS - 5

1878

203,019 Circuit for Acoustic or Telephonic

Telegraphs . . . . . . . . . . . . . .Feb. 13, 1878

201,760 Speaking Machines. . . . . . . . . . .Feb. 28, 1878

203,016 Speaking Machines. . . . . . . . . . .Feb. 28, 1878

203,017 Telephone Call Signals . . . . . . . .Feb. 28, 1878

214,636 Electric Lights. . . . . . . . . . . . Oct. 5, 1878

222,390 Carbon Telephones. . . . . . . . . . . Nov. 8, 1878

217,782 Duplex Telegraphs. . . . . . . . . . .Nov. 11, 1878

214,637 Thermal Regulator for Electric Lights.Nov. 14, 1878

210,767 Vocal Engines. . . . . . . . . . . . .Aug. 31, 1878

218,166 Magneto Electric Machines. . . . . . . Dec. 3, 1878

218,866 Electric Lighting Apparatus. . . . . . Dec. 3, 1878

219,628 Electric Lights. . . . . . . . . . . . Dec. 3, 1878

295,990 Typewriter . . . . . . . . . . . . . . Dec. 4, 1878

218,167 Electric Lights. . . . . . . . . . . .Dec. 31, 1878

1879

224,329 Electric Lighting Apparatus. . . . . .Jan. 23, 1879

227,229 Electric Lights. . . . . . . . . . . .Jan. 28, 1879

227,227 Electric Lights. . . . . . . . . . . . Feb. 6, 1879

224.665 Autographic Stencils for Printing. . March 10, 1879

227.679 Phonograph . . . . . . . . . . . . . March 19, 1879

221,957 Telephone. . . . . . . . . . . . . . March 24, 1879

227,229 Electric Lights. . . . . . . . . . . April 12, 1879

264,643 Magneto Electric Machines. . . . . . April 21, 1879

219,393 Dynamo Electric Machines . . . . . . . July 7, 1879

231,704 Electro Chemical Receiving Telephone .July 17, 1879

266,022 Telephone. . . . . . . . . . . . . . . Aug. 1, 1879

252,442 Telephone. . . . . . . . . . . . . . . Aug. 4, 1879

222,881 Magneto Electric Machines. . . . . . .Sept. 4, 1879

223,898 Electric Lamp. . . . . . . . . . . . . Nov. 1, 1879

1880

230,255 Electric Lamps . . . . . . . . . . . .Jan. 28, 1880

248,425 Apparatus for Producing High Vacuums Jan.28 1880

265,311 Electric Lamp and Holder for Same. . . Jan. 28 1880

369,280 System of Electrical Distribution. . .Jan. 28, 1880

227,226 Safety Conductor for Electric Lights .March 10,1880

228,617 Brake for Electro Magnetic Motors. . March 10, 1880

251,545 Electric Meter . . . . . . . . . . . March 10, 1880

525,888 Manufacture of Carbons for Electric

Lamps. . . . . . . . . . . . . . . . March 10, 1880

264,649 Dynamo or Magneto Electric Machines. March 11,