File:19th century knowledge mechanisms wedge lever press.jpg

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English: 19th century knowledge mechanisms wedge lever press
Date
Source The engineer's and mechanic's encyclopaedia, comprehending practical ...
Author Luke Hebert

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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.
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United States
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current03:36, 8 December 2009Thumbnail for version as of 03:36, 8 December 2009616 × 666 (55 KB)Jonp154 (talk | contribs){{Information |Description={{en|1=19th century knowledge mechanisms wedge lever press}} |Source=The engineer's and mechanic's encyclopaedia, comprehending practical ... |Author=Luke Hebert |Date=1836 |Permission= |other_versions= }}

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