. . . . . . . . .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,
1880
228,32