Datoteka:Irving Langmuir.jpg

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Sažetak

OpisIrving Langmuir.jpg	Irving Langmuir
Datum	Langmuir was born in 1881, and an editor presumed (en.wiki deletion log) that he "is clearly younger than 42 in this photo, thus pre-1923". NB. This doesn't guarantee PD status as no information about first publication is given.
Izvor	http://pagesperso-orange.fr/philippe.boeuf/robert/portraits/langmuir.htm (Direct link to image) Edgar Fahs Smith Collection, University of Pennsylvania Library, Online
Autor	NepoznatUnknown author

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.