Invention Grant
- Patent Title: Spindle step-bearing.
- Patent Title (中): 主轴步进轴承。
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Application No.: US1906347789Application Date: 1906-12-14
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Publication No.: US847803APublication Date: 1907-03-19
- Inventor: MORGAN THOMAS W
- Applicant: WILBUR W MARSH
- Assignee: Wilbur W Marsh
- Current Assignee: Wilbur W Marsh
- Priority: US1906347789 1906-12-14
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