US Patent: 250,133
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| Thrashing Machine
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Patentees:
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| Jerome I. Case (exact or similar names) - Racine, Racine County, WI |
| Massena B. Erkine (exact or similar names) - Racine, Racine County, WI |
| William W. Dingee (exact or similar names) - Racine, Racine County, WI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 21, 1881 |
| Granted: |
Nov. 29, 1881 |
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Joel Havens "Vintage Machinery" entry for J. I. Case & Co.
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