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File:Britannica Dynamo 37.jpg

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Description
English: Construction of a heteropolar alternator with internal poles radiating outwards from a circular yoke-ring.
Date
Source Encyclopædia Britannica, 1911
Author Encyclopædia Britannica, Volume 8, Slice 9., available freely at Project Gutenberg

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Public domain This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States.
Public domain This image comes from the Project Gutenberg archives. This is an image that has come from a book or document for which the American copyright has expired and this image is in the public domain in the United States and possibly other countries.

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current20:01, 17 February 2011Thumbnail for version as of 20:01, 17 February 2011920 × 424 (96 KB)Keith Edkins (talk | contribs)=={{int:filedesc}}== {{Information |Description={{en|Construction of a heteropolar alternator with internal poles radiating outwards from a circular yoke-ring.}} |Source=Encyclopædia Britannica, 1911 |Author={{Gutenberg|no=34878|name=Encyclopædia Britan

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