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File:PSM V21 D521 A simple loop of the same plane.jpg

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Description A simple loop of the same plane
Date between 1890 and 1891
date QS:P,+1890-00-00T00:00:00Z/8,P1319,+1890-00-00T00:00:00Z/9,P1326,+1891-00-00T00:00:00Z/9
Source Popular Science Monthly Volume 21
Author Unknown authorUnknown author
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current23:09, 22 November 2010Thumbnail for version as of 23:09, 22 November 2010290 × 257 (9 KB)Ineuw (talk | contribs){{Information |Description = A simple loop of the same plane |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_21.djvu/521 |Date = 1890-1891 |Author = Unknown |Permission = {{PD-old}} |other

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