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File:Grant 1876 Difference Engine.jpg

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Description
English: Difference Engine of George B. Grant at the US Centennial Exhibition, Phillagelphia. Only known photo to exist.
Date
Source US Centennial Exhibition. Reports and Awards. 7, 1876.
Author Unknown authorUnknown author
Permission
(Reusing this file)
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:Grant_1876_Difference_Engine.jpg

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inception

31 December 1876Gregorian

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Date/TimeThumbnailDimensionsUserComment
current08:29, 15 August 2012Thumbnail for version as of 08:29, 15 August 20121,201 × 1,032 (459 KB)DrJunge{{Information |Description ={{en|1=Difference Engine of George B. Grant at the US Centennial Exhibition, Phillagelphia. Only known photo to exist.}} |Source =US Centennial Exhibition. Reports and Awards. 7, 1876. |Author =unknown |D...

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