File:Gramme Ring - Modern Form.png
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DescriptionGramme Ring - Modern Form.png |
Original text of illustration: Figure 249: Modern form of the Gramme ring armature.
Public Domain source:
Scanned by Dale Mahalko, Gilman, WI, USA DMahalko (talk) 22:01, 12 January 2008 (UTC) |
Date | 14 January 2008 (original upload date) |
Source | Transferred from en.wikipedia to Commons by J JMesserly. |
Author | The original uploader was DMahalko at English Wikipedia. |
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- 22:01, 12 January 2008 DMahalko 1,144×440 (90 KB)
- (== Summary == TBD Public Domain source: * Hawkins Electrical Guide, Volume 1, Page 224. * Copyright 1917 by Theo. Audel & Co. * Printed in the United States Scanned by Dale Mahalko, Gilman, WI, USA J JMesserly (talk) 20:03, 7 January 2009 (UTC) == Licensing ==
Public domainPublic domainfalsefalse |
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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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 20:03, 7 January 2009 | 1,144 × 440 (90 KB) | J JMesserly (talk | contribs) | {{Information |Description= Original text of illustration: Figure 249: Modern form of the Gramme ring armature. * The core consists of a number of thin flat rings of well-annealed charcoal iron, the outer diameter of each ring or disc being 11.5 inches a |
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