Elisha Gray

Highlights

Elisha Gray patent model telegraph repeater

Elisha Gray patent model telegraph repeater

Gray telautograph receiver, patent #s 386814 and 386815

Gray telautograph receiver, patent #s 386814 and 386815

Gray telegraph relay patent model

Gray telegraph relay patent model

Gray telautograph transmitter, patent #s 461470 and 461471

Gray telautograph transmitter, patent #s 461470 and 461471

Featured at

National Museum of American History

National Museum of American History

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