Milestones in Science & Engineering – Johann Philipp Reis / Alexander Graham Bell: the Telephone

In: Movies

9 Dec 2009

In 1876 Alexander Graham Bell was granted a patent for his telephone.

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Added: Wed Dec 09 19:20:05 UTC 2009
Air date: Tue Jan 01 00:00:00 UTC 1991
Duration: 14:51

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