Invention Grant
- Patent Title: Hydraulic release for well bottoms
- Patent Title (中): 液压释放井底
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Application No.: US16579837Application Date: 1937-09-27
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Publication No.: US2155382APublication Date: 1939-04-25
- Inventor: BEAN RURIC N
- Applicant: LESLIE A LAYNE
- Assignee: Leslie A Layne
- Current Assignee: Leslie A Layne
- Priority: US16579837 1937-09-27
- Main IPC: E21B43/10
- IPC: E21B43/10
Public/Granted literature
Information query
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