Elisha Gray Free People Check 

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Google News: La columna de aire por Abel Hernández

[El Cultural.es] - El Choralcello, el Cantar Arc de Duddell, el "telégrafo musical" de Elisha Gray y, sobre todo, el leviatánico Telharmonium o Dynamophone (sus 200 toneladas, ocuparon durante 20 años un piso entero en la calle 39 de Broadway, Nueva York) ideado por

New book claims Bell stole key telephone idea - Technology ...

www.nbcnews.com
A new book claims to have definitive evidence of a long-suspected technological crime — that Alexander Graham Bell stole ideas for the telephone from a rival, Elisha Gray.
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