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USPTO Telephone Patent No. 174465
 

 

 

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Summary

Description
English: An image of the master telephone patent awarded to Alexander Graham Bell. The patent was arguably the most valuable every awarded in history.
Date March 1876(1876-03)
Source Image provided from this historical article: http://www.corp.att.com/history/inventing.html
Author U.S.P.T.O.
Permission
(Reusing this file)
Public domain
This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1923. See this page for further explanation.
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Public domain This work is in the public domain in the United States because it is a work of the United States Federal Government under the terms of Title 17, Chapter 1, Section 105 of the US Code. See Copyright.

Note: This only applies to works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See 206.02(b) of Compendium II: Copyright Office Practices). It also does not apply to certain US coins, see The US Mint Terms of Use.


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Licensing:
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File name uspto_telephone_patent_no._174465.jpg
Size, bytes 247259
Mime type image/jpeg
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