Elisha Gray
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Elisha Gray was an American electrical engineer who co-founded the Western Electric Manufacturing Company. Gray is best known for his development of a telephone prototype in 1876 in Highland Park, Ill
An early photo of employees of Gray and Barton. Elisha Gray is in the front row, holding his automatic telegraph printer
Elisha Gray's drawing of liquid transmitter made on February 11, 1876
The master telephone patent awarded to Bell, No. 174465, March 7, 1876
Telautograph
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The telautograph is an ancestor of the modern fax machine. It transmits electrical signals representing the position of a pen or tracer at the sending station to repeating mechanisms attached to a pen
The inventor Elisha Gray
Elisha Gray's Telautograph Transmitter and Receiver in use
Foster Ritchie's Telautograph Receiver and Transmitter c. 1904
Sample work of telautograph