File:Northup induction furnace.jpg

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DescriptionNorthup induction furnace.jpg	English: A Northup induction furnace, a furnace that melts metals by eddy currents induced from a coil of wire carrying a radio frequency electric current..
Date	1922
Source	Retrieved April 1, 2015 from Horace Wadsworth Gillett, Edward Lawrence Mack (1922) Electric Brass Furnace Practice, US Bureau of Mines, Dept. of the Interior, US Govt. Printing Office, Plate 25 facing p. 265 on Google Books
Author	Horace Wadsworth Gillett and Edward Lawrence Mack

Public domain	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.	United States
	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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current	19:26, 1 May 2015		551 × 758 (110 KB)	Chetvorno (talk \| contribs)	User created page with UploadWizard

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