US Patent: 744,728
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| Traction Engine
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Patentees:
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| Charles Samuel Doney (exact or similar names) - Lewiston, Nez Perces County, ID |
| Olliver Allon Gordon (exact or similar names) - Lewiston, Nez Perces County, ID |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 18, 1903 |
| Granted: |
Nov. 24, 1903 |
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Joel Havens
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