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- Vintage machine shop manufacturing history project.
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- Amos W. Woodward's first patent number was 103,813.
- The Saga of a Patent Model.
- The Saga of a Patent Model.
- The Saga of a Patent Model.
- The American patent office.
- Patent history project.
- Patent history project.
- Patent history project.
- Patent history project.
- Patent history project.
- AMOS W. WOODWARD'S FIRST PATENT FROM 1870.