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The Invention of the Telephone
High School
/
Science
/
Inventions
salz66
Jun 19, 2010
19166 views
Inventions
A look at the many contributors and inventors
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<iframe width="510" height="340" frameborder="0" allowfullscreen="" src="https://www.teachertube.com/embed/videos/186355" ></iframe>
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