US Patent: 301,891
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| Gear Cutting Machine
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Patentees:
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| Freeman Higgins (exact or similar names) - Manchester, Hillsborough County, NH |
| Richard S. Eastman (exact or similar names) - Manchester, Hillsborough County, NH |
| USPTO Classifications: |
| 409/3 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 04, 1883 |
| Granted: |
Jul. 15, 1884 |
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Joel Havens
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