US Patent: 3,109,915
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| Method of and Apparatus for Machining Work at Elevated Temperature
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Patentees:
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| Jens L. Wennberg (exact or similar names) - Cincinnati, Hamilton County, OH |
| William Pentland (exact or similar names) - Ithaca, Tompkins County, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 08, 1961 |
| Granted: |
Nov. 05, 1963 |
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Joel Havens
"Vintage Machinery" entry for Cincinnati Milling Machine Co.
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