Invention Grant
- Patent Title: Railroad axle-coupling.
- Patent Title (中): 铁路联轴器。
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Application No.: US1911655640Application Date: 1911-10-19
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Publication No.: US1009402APublication Date: 1911-11-21
- Inventor: FRENCH FREDERICK W
- Applicant: FRENCH FREDERICK W
- Assignee: Frederick W French
- Current Assignee: Frederick W French
- Priority: US1911655640 1911-10-19
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