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Title:
Hydraulic jet cutting and pumping apparatus for mining hydrocarbonaceous solids
United States Patent 2678203
Inventors:
Huff, Lyman C.
Publication Date:
05/11/1954
Assignee:
UNIVERSAL OIL PROD CO
Primary Class:
Other Classes:
37/323, 175/424, 299/5, 299/17
International Classes:
E21C25/60
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