Invention Grant
- Patent Title: Railway-spike.
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Application No.: US1906316091Application Date: 1906-05-10
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Publication No.: US874454APublication Date: 1907-12-24
- Inventor: SWANSON ERNEST
- Applicant: SWANSON ERNEST
- Assignee: Ernest Swanson
- Current Assignee: Ernest Swanson
- Priority: US1906316091 1906-05-10
Information query
