US Patent: 1,760,639
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| Control Mechanism for Metal Planers
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Patentees:
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| Robert Gillham (exact or similar names) - Cincinnati, Hamilton County, OH |
| Thomas Addison (exact or similar names) - Cincinnati, Hamilton County, OH |
| Frank Wetzel (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: |
May 27, 1930 |
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Joel Havens "Vintage Machinery" entry for Cincinnati Planer Co.
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