US Patent: 1,986,006
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| Machine Tool Construction
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Patentees:
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| Raymond H. McClellan (exact or similar names) - Hamilton, Butler County, OH |
| George Langen (exact or similar names) - Cincinnati, Hamilton County, OH |
| Bertram B. Quillen (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: |
Oct. 19, 1931 |
| Granted: |
Jan. 01, 1935 |
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Joel Havens
"Vintage Machinery" entry for Cincinnati Planer Co.
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