Title:
Method of and means for taking soil tests
United States Patent 1919461
Inventors:
Burke, Ralph H.
Forschner, Anthony J.
Publication Date:
07/25/1933
Export Citation:
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Assignee:
Burke, Ralph H.
Forschner, Anthony J.
Primary Class:
175/58
Other Classes:
175/405
International Classes:
E21B25/00; E21B25/00
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