US Patent: 403,378
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| Governor for Gas Engines
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Patentees:
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| Newton Rogers (exact or similar names) - Terre Haute, Vigo County, IN |
| James A. Wharry (exact or similar names) - Terre Haute, Vigo County, IN |
| USPTO Classifications: |
| 74/3 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 22, 1888 |
| Granted: |
May 14, 1889 |
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Joel Havens
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