to Signalling Apparatus--Edison
and Johnson. . . . . . . . . . . . . .Oct. 21, 1880
242,900 Manufacturing Carbons for Electric
Lamps. . . . . . . . . . . . . . . . .Oct. 21, 1880
251,556 Regulator for Magneto or Dynamo
Electric Machines. . . . . . . . . . .Oct. 21, 1880
248,426 Apparatus for Treating Carbons for
Electric Lamps . . . . . . . . . . . . Nov. 5, 1880
239,151 Forming Enlarged Ends on Carbon
Filaments. . . . . . . . . . . . . . .Nov. 19, 1880
12,631 Design Patent--Incandescent Electric
Lamp . . . . . . . . . . . . . . . . .Nov. 23, 1880
239,149 Incandescing Electric Lamp . . . . . . Dec. 3, 1880
242,896 Incandescent Electric Lamp . . . . . . Dec. 3, 1880
242,897 Incandescent Electric Lamp . . . . . . Dec. 3, 1880
248,565 Webermeter . . . . . . . . . . . . . . Dec. 3, 1880
263,878 Electric Lamp. . . . . . . . . . . . . Dec. 3, 1880
239,154 Relay for Telegraphs . . . . . . . . .Dec. 11, 1880
242,898 Dynamo Electric Machine. . . . . . . .Dec. 11, 1880
248,431 Preserving Fruit . . . . . . . . . . .Dec. 11, 1880
265,777 Treating Carbons for Electric Lamps. .Dec. 11, 1880
239,374 Regulating the Generation of Electric
Currents . . . . . . . . . . . . . . .Dec. 16, 1880
248,428 Manufacture of Incandescent Electric
Lamps. . . . . . . . . . . . . . . . .Dec. 16, 1880
248,427 Apparatus for Treating Carbons for
Electric Lamps . . . . . . . . . . . .Dec. 21, 1880
248,437 Apparatus for Treating Carbons for
Electric Lamps . . . . . . . . . . . .Dec. 21, 1880
248,416 Manufacture of Carbons for Electric
Lights . . . . . . . . . . . . . . . .Dec. 30, 1880

1881

242,899 Electric Lighting. . . . . . . . . . .Jan. 19, 1881
248,418 Electric Lamp. . . . . . . . . . . . . Jan. 19 1881
248,433 Vacuum Apparatus . . . . . . . . . . . Jan. 19 1881
251,548 Incandescent Electric Lamps. . . . . .Jan. 19, 1881
406,824 Electric Meter . . . . . . . . . . . .Jan. 19, 1881
248,422 System of Electric Lighting. . . . . .Jan. 20, 1881
431,018 Dynamo or Magneto Electric Machine . . Feb. 3, 1881
242,901 Electric Motor . . . . . . . . . . . .Feb. 24, 1881
248,429 Electric Motor . . . .