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File:Winkler Clemens stopcocks.jpg

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Winkler_Clemens_stopcocks.jpg (488 × 195 pixels, file size: 23 KB, MIME type: image/jpeg)

Summary

Description Drawing of three-way stopcock
Date
Source Page 33 of Handbook of Technical Gas-analysis
Author Clemens Winkler

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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
United States
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Date/TimeThumbnailDimensionsUserComment
current21:33, 9 February 2008Thumbnail for version as of 21:33, 9 February 2008488 × 195 (23 KB)Astrochemist{{Information |Description = Drawing of three-way stopcock |Source = Page 33 of ''Handbook of Technical Gas-analysis'' |Date = 1902 |Author = Clemens Winkler |Permission = |other_versions = }} Category:History of chemistry

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