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Marion Cameron Gray
Ezra Gilliland
Elisha Gray
Inventor and Bell competitor
1878
Elisha Gray (August 2, 1835 – January 21, 1901) 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, Illinois. Some recent authors have argued that Gray should be considered the true inventor of the telephone because Alexander Graham Bell allegedly stole the idea of the liquid transmitter from him. Gray had been using liquid transmitters in his telephone experiments for more than two years previously; however, Bell's patent was upheld in court.
Gray is also… More on Wikipedia →
Timeline events (5)
Related concepts (4)
Acoustic telegraphy
Acoustic telegraphy (also known as harmonic telegraphy) was a name for various methods of multiplexing (transmitting more than one) telegraph messages simultaneously over…
Elisha Gray and Alexander Bell telephone controversy
The Elisha Gray and Alexander Graham Bell controversy concerns the question of whether Elisha Gray and Alexander Graham Bell invented the telephone independently. This is…
Telautograph
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 repeatin…
Water microphone
A water microphone or water transmitter is based on Ohm's law that current in a wire varies inversely with the resistance of the circuit. The sound waves from a human voi…