File:PSM V17 D740 George Boole.jpg

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    Description George Boole
    Date
    Source Popular Science Monthly Volume 17, page 720
    Author Unknown authorUnknown author
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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, 1931.
    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:PSM_V17_D740_George_Boole.jpg

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    Date/TimeThumbnailDimensionsUserComment
    current20:30, 27 February 2015Thumbnail for version as of 20:30, 27 February 20151,834 × 2,077 (717 KB)wikimediacommons>IneuwCleaned image and improved contrast

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