Invention Grant
- Patent Title: Apparatus for drilling well boreholes
- Patent Title (中): 钻井井的装置
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Application No.: US17593250Application Date: 1950-07-26
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Publication No.: US2684835APublication Date: 1954-07-27
- Inventor: MOORE THOMAS V
- Applicant: STANDARD OIL DEV CO
- Assignee: Standard Oil Development Co
- Current Assignee: Standard Oil Development Co
- Priority: US17593250 1950-07-26
- Main IPC: E21B7/18
- IPC: E21B7/18 ; E21B17/07 ; E21B21/00 ; E21B44/00
Public/Granted literature
- US20220153987A1 CURABLE COMPOSITIONS, ARTICLES THEREFROM, AND METHODS OF MAKING AND USING SAME Public/Granted day:2022-05-19
Information query
