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Edison: His Life and Inventions

PATENTS
LIST OF UNITED STATES PATENTS
List of United States patents granted to Thomas A. Edison, arranged according to dates of
execution of applications for such patents. This list shows the inventions as Mr. Edison
has worked upon them from year to year
1868
NO. TITLE OF PATENT DATE EXECUTED DATE EXECUTED
90,646, Electrographic Vote Recorder . . . . .Oct. 13, 1868
1869
91,527 Printing Telegraph (reissued October
25, 1870, numbered 4166, and August
5, 1873, numbered 5519). . . . . . . .Jan. 25, 1869
96,567 Apparatus for Printing Telegraph (reissued
February 1, 1870, numbered
3820). . . . . . . . . . . . . . . . .Aug. 17, 1869
96,681 Electrical Switch for Telegraph ApparatusAug. 27, 1869
102,320 Printing Telegraph--Pope and Edison
(reissued April 17, 1877, numbered
7621, and December 9, 1884, numbered
10,542). . . . . . . . . . . . . . . Sept. 16, 1869
103,924 Printing Telegraphs--Pope and Edison
(reissued August 5, 1873)
 
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