Image:Thaddeus Cahill Telharmonium patent us000580035-011.png

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[edit] Summary

Description

Telharmonium patent us000580035-011 page 11 (start of description) of 55 by Thaddeus Cahill dated April 6, 1897, applied February 4, 1896

Source: [1]
Source

US Patent Office
Date

April 6, 1897
Author

Thaddeus Cahill
Permission
(Reusing this image)
Public domain This image (or other media file) is in the public domain because its copyright has expired.

This applies to the United States, Canada, the European Union and those countries with a copyright term of life of the author plus 70 years.

Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Côte d'Ivoire has a general copyright term of 99 years and Honduras has 75 years, but they do implement that rule of the shorter term.

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[edit] Licensing

May or may not be in the public domain In general, the contents of United States patents are in the public domain.[2]

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A portion of the disclosure of this patent document contains material which is subject to (copyright or mask work) protection. The (copyright or mask work) owner has no objection to the facsimile reproduction by any­one of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all (copyright or mask work) rights whatsoever.

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current02:01, 12 September 20072,320×3,408 (155 KB)Wikibob (== Summary == {{Information| |Description= Telharmonium patent us000580035-011 page 11 (start of description) of 55 by Thaddeus Cahill dated April 6, 1897, applied February 4, 1896 Source: [http://patimg1.uspt)
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