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In which decade was the telephone invented?

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posted May 26, 2016 by Ritika

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1 Answer

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The first successful bi-directional transmission of clear speech by Bell and Watson was made on March 10, 1876 when Bell spoke into the device, "Mr. Watson, come here, I want to see you." and Watson answered.

answer May 26, 2016 by Manikandan J
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