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This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government , such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.
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Transferred from en.wikipedia to Commons by FastilyClone using MTC! .
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here . All following user names refer to en.wikipedia.
Date/Time
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Comment
2006-04-13 21:50:13
9632× 14456×
Lar
From the [[Library of Congress]] [[HAER]] collection, diagram delineated by Eric M Hansen, 1978, as part of the HISTORIC AMERICAN ENGINEERING RECORD, HERITAGE CONSERVATION & RECREATION SERVICE, Image shows schematic unit operations process for extracting
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Date/Time Thumbnail Dimensions User Comment
current 05:34, 21 October 2016 9,632 × 14,456 (1.42 MB) FastilyClone Transferred from en.wikipedia (MTC! )
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