The telegraph was first put in operation ... This was the turning point cf the telegraph invention in America. As an appropriate acknowledgment for the young lady'g sympathy and kindness ...

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Watson, one of Bell's assistants, was trying to reactivate a telegraph transmitter ... how to transmit a simple current first, and received a patent for that invention on March 7, 1876.

American Telephone and Telegraph Company (or AT ... Alexander Graham Bell a year after he'd invented the telephone. That year the company set up the first private phone line: between Boston ...

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The invention of the telegraph by Cooke and Wheatstone ... Marconi A description of the major scientific invention of the first wireless communication by Guglielmo Marconi in 1897.

Following the telegraph the race was on to turn speech ... by Nicephore Niepce A description of the major scientific invention of the first photograph by Nicephore Niepce in 1826.