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Oil drilling rig Patent from 1911

Oil Drilling Rig patent drawing from 1911. You are free to use the patents on your website. Please credit www.patentswallart.com

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Uploaded on March 21, 2015

Oil drilling rig Patent from 1911

Oil Drilling Rig patent drawing from 1911. You are free to use the patents on your website. Please credit www.patentswallart.com

2,803 views
1 fave
0 comments
Uploaded on March 21, 2015
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