US Patent: 9,848
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| Improvement in Forming Teeth on Mill Saws
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Patentee:
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| Nathan T. Coffin (exact or similar names) - Knightstown, IN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Jul. 12, 1853 |
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Russ Allen.
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Description: |
| Method to form the chisel tooth entirely by swaging with a die instead of the usual method of using punches to upset the point and then a file to shape the tooth. |
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