File:Gustav R. Paalen, Double Welled Vessel 1909.png

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Description
English: Gustav Robert Paalen, Double Walled Vessel, 1. Patent June 27, 1908, published July 13th 1909
Date
Source http://www.google.com.na/patents/US928002
Author Gustav Robert Paalen

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Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Gustav_R._Paalen,_Double_Welled_Vessel_1909.png

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13 July 1909Gregorian

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Date/TimeThumbnailDimensionsUserComment
current21:42, 3 October 2019Thumbnail for version as of 21:42, 3 October 20192,048 × 3,072 (547 KB)User-duckCropped 12 % horizontally, 10 % vertically, rotated 358.7° using CropTool with precise mode.
09:41, 31 December 2016Thumbnail for version as of 09:41, 31 December 20162,320 × 3,408 (77 KB)AndreasneufertUser created page with UploadWizard
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