Invention Grant
- Patent Title: Valve lubricants
- Patent Title (中): 阀门润滑油
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Application No.: US54949344Application Date: 1944-08-14
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Publication No.: US2393800APublication Date: 1946-01-29
- Inventor: MORGAN JOHN D , LOWE RUSSELL E
- Applicant: CITIES SERVICE OIL CO
- Assignee: Cities Service Oil Co
- Current Assignee: Cities Service Oil Co
- Priority: US54949344 1944-08-14
Information query
