Invention Grant
- Patent Title: Art of preparing lubricating oil
- Patent Title (中): 准备润滑油的艺术
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Application No.: US6402225Application Date: 1925-10-21
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Publication No.: US1869608APublication Date: 1932-08-02
- Inventor: MILLER CLARKE C
- Applicant: STANDARD OIL CO
- Assignee: Standard Oil Co
- Current Assignee: Standard Oil Co
- Priority: US6402225 1925-10-21
- Main IPC: C10M171/00
- IPC: C10M171/00
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