Invention Grant
- Patent Title: Well tool apparatus
- Patent Title (中): 井工具
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Application No.: US32586752Application Date: 1952-12-13
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Publication No.: US2802533APublication Date: 1957-08-13
- Inventor: BAKER REUBEN C
- Applicant: BAKER OIL TOOLS INC
- Assignee: Baker Oil Tools Inc
- Current Assignee: Baker Oil Tools Inc
- Priority: US32586752 1952-12-13
- Main IPC: E21B23/06
- IPC: E21B23/06
Information query
