Fitxer:CalculatingMachinePatentBurroughs.jpg

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English: Drawing for a Calculating Machine, 08/21/1888. This is the printed patent drawing for a calculating machine invented by William S. Burroughs. From the National Archives.
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This media is available in the holdings of the National Archives and Records Administration, cataloged under the National Archives Identifier (NAID) 595511.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

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http://en.wikipedia.org/wiki/Image:CalculatingMachinePatentBurroughs.jpg
Autor William S. Burroughs
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Public domain The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s)

The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}.

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Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:CalculatingMachinePatentBurroughs.jpg

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21 ago 1888Gregorià

212.956 byte

1.200 píxel

838 píxel

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actual05:11, 9 oct 2006Miniatura per a la versió del 05:11, 9 oct 2006838 × 1.200 (208 Ko)German{{Information |Description=Drawing for a Calculating Machine, 08/21/1888. This is the printed patent drawing for a calculating machine invented by William S. Burroughs. From the National Archives. |Source=http://en.wikipedia.org/wiki/Image:CalculatingMa

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