US Patent: 807,740
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| Metal Planing Machine
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Patentees:
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| Leon J. Harley (exact or similar names) - Springfield, Hampden County, MA |
| Cornelius O. Harley (exact or similar names) - Springfield, Hampden County, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 21, 1905 |
| Granted: |
Dec. 19, 1905 |
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Joel Havens
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