US Patent: 1,718,726
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| Oiling System
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Patentees:
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| Thomas Addison (exact or similar names) - Cincinnati, Hamilton County, OH |
| Robert Gillham (exact or similar names) - Cincinnati, Hamilton County, OH |
| George Langen (exact or similar names) - Cincinnati, Hamilton County, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 05, 1925 |
| Granted: |
Jun. 25, 1929 |
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Joel Havens "Vintage Machinery" entry for Cincinnati Planer Co.
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