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FLOW-REVERSING LINER SHOE FOR WELL GRAVEL PACKING APPARATUS
United States Patent 3421586
US Patent References:
/RE14756.html
- - RE14756
Oil well bottom release valve
- - 2192945
Method and apparatus for placing a filter body in a well
- - 2207334
Method and apparatus for production well completion
- - 3295603
Inventors:
Solum, James R.
Publication Date:
01/14/1969
View Patent Images:
Download PDF 3421586
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Assignee:
B & W INC
Primary Class:
166/51
Other Classes:
166/205, 166/158
International Classes:
E21B43/04
;
E21B43/02
; E21B43/04; E21B43/08
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