US Patent: 3,089,293
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Automatic Control Mechanism for Roll Grinder
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Patentees:
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Walter A. Hoier (exact or similar names) - Cincinnati, Hamilton County, OH |
George W. Marshall (exact or similar names) - Cincinnati, Hamilton County, OH |
Milton V. Waters (exact or similar names) - Silverton, Hamilton County, OH |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Oct. 05, 1961 |
Granted: |
May 14, 1963 |
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Joel Havens "Vintage Machinery" entry for Cincinnati Milling Machine Co.
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