u.s. patents
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LIST OF UNITED STATES PATENTSList of United States patents granted to Thomas A. Edison,arranged according to dates of execution ofapplications for such patents. This list showsthe inventions as Mr. Edison has workedupon them from year to year1868NO. TITLE OF PATENT DATE EXECUTED DATE EXECUTED90,646, Electrographic Vote Recorder . . . . .Oct. 13, 1868186991,527 Printing Telegraph (reissued October25, 1870, numbered 4166, and August5, 1873, numbered 5519). . . . . . . .Jan. 25, 1869...。...
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