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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