US Patent: 619,501
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| Milling-machine
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Patentee:
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| James Charles Potter (exact or similar names) - Pawtucket, RI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 25, 1897 |
| Granted: |
Feb. 14, 1899 |
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Jeff Joslin
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Description: |
| This machine is specialized for "fluting or longitudinally grooving the drawing-rolls for spinning-machines", several rolls at a time. |
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