Stock Photo - Elisha Gray, American inventor, presenting the caveat for his telephone, 1876, (c1890). Gray (1835-1901) arrived at the US Patent Office at 4pm on 14 February 1876, just two hours after Alexander Graham Bell (1847-1922) had presented his own caveat for a telephone. From Les Nouvelles Conquetes de la Science by Louis Figuier. (Paris, c1890).

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