File:Dynamo - commutating plane definitions.jpg
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Size of this preview: 574 × 600 pixels. Other resolutions: 230 × 240 pixels | 598 × 625 pixels.
Original file (598 × 625 pixels, file size: 144 KB, MIME type: image/jpeg)
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English: Dynamo - commutating plane definitions |
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Public Domain source:
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Theo. Audel & Co. |
Licensing
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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.
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Original upload log
The original description page was here. All following user names refer to en.wikipedia.
- 2007-09-15 01:41 DMahalko 598×625× (114931 bytes) This is from the 1917 Hawkins Electrical Guide, page 264-265 of volume 1. Photographed, reduced to grayscale, and saved as a PNG by me. Dale Mahalko, Gilman, WI Source and copyright information: {| | [[Image:1917 Hawkins Electrical Guide
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:10, 6 February 2012 | | 598 × 625 (144 KB) | commons>Jbarta | minor cleanup |
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