File:PSM V71 D541 Radioactivity of salts.png

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English: Radioactivity of salts
Date
Source Popular Science Monthly Volume 71
Author Unknown authorUnknown author

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Public domain
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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.
United States
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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130,960 byte

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f950c52727a62364b04d36ae005a607116a303ec

determination method or standard: SHA-1

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Date/TimeThumbnailDimensionsUserComment
current18:08, 29 September 2013Thumbnail for version as of 18:08, 29 September 20131,712 × 569 (128 KB)IneuwUser created page with UploadWizard
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