US Patent: 1,860,840
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| Milling machine
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Patentees:
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| Oswald A. Olsen (exact or similar names) - Bridgeport, CT |
| Newman M. Marsilius (exact or similar names) - Bridgeport, CT |
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Patent Dates:
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| Applied: |
Nov. 30, 1927 |
| Granted: |
May 31, 1932 |
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Jeff Joslin Vintage Machinery entry for Producto Machine Co.
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Description: |
| Improvements to patents 1,689,635 and 1,756,831, and are relevant to "Pro-Ducto-Matic" production milling machines. |
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