US Patent: 292,924
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| Traction Engine
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Patentees:
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| Charles J. Leach (exact or similar names) - Hartford, Van Buren County, MI |
| Allen Olds (exact or similar names) - Hartford, Van Buren County, MI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 17, 1883 |
| Granted: |
Feb. 05, 1884 |
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Joel Havens
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