Invention Grant
- Patent Title: Pressure measuring device
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Application No.: US26916939Application Date: 1939-04-21
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Publication No.: US2243398APublication Date: 1941-05-27
- Inventor: SEWELL BENJAMIN W
- Applicant: STANDARD OIL DEV CO
- Assignee: Standard Oil Development Co
- Current Assignee: Standard Oil Development Co
- Priority: US26916939 1939-04-21
- Main IPC: G01L7/04
- IPC: G01L7/04
Information query
