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Letter from Alexander Graham Bell to Mabel Hubbard Bell, April 5, 1879

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Picryl description: Public domain document related to trials and litigations, free to use, no copyright restrictions image.

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telephone patents trials litigation etc invention fog signals underwater acoustics correspondence letter alexander graham bell alexander graham bell mabel hubbard mabel hubbard bell high resolution ultra high resolution
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Date

01/01/1879
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Contributors

Bell, Alexander Graham
Gray, Elisha
Bell, Mabel Hubbard
Grosvenor, Elsie Bell
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Source

Library of Congress
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Link

http://www.loc.gov/
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telephone patents trials litigation etc invention fog signals underwater acoustics correspondence letter alexander graham bell alexander graham bell mabel hubbard mabel hubbard bell high resolution ultra high resolution