His lesser-known inventions include a vote-recording machine & the mimeograph machine
But when he took the vote recorder to Washington, Edison was met with a ... 
Albert B. Dick purchased one of the pen's patented technologies to create the 
mimeograph, a stencil ... Thomas Edison developed a hand-cranked machine 
called the ... Edison debuted one of his most successful inventions, the... [DOC] [TLE] Thomas Edison Facts - Biography - YourDictionary [PAR] The American inventor Thomas Alva Edison (1847-1931) held hundreds of 
patents, most ... His first patent was for an electric vote recorder.