Invention Grant
- Patent Title: Process of and machine for renewing steel rails.
- Patent Title (中): 钢铁再生工艺及机器。
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Application No.: US1897659485Application Date: 1897-11-22
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Publication No.: US635577APublication Date: 1899-10-24
- Inventor: MCKENNA EDWARD W
- Applicant: MCKENNA STEEL WORKING COMPANY
- Assignee: Mckenna Steel Working Company
- Current Assignee: Mckenna Steel Working Company
- Priority: US1897659485 1897-11-22

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