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mar 7, 1876 - Bell patents his ideas

Description:

Bell receives The U.S. Patent Office patent number 174,465. It allowed him to have his machine transmit sound waves telegraphically without others copying his ideas.

Added to timeline:

Alexander Graham Bell

ByAlicia Gracidas-Guldan
20 Dec 2018
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558

Date:

mar 7, 1876
Now
~ 150 years ago
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