US Patent: 156,989
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| Improvement in Saw Grinding Machines
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Patentee:
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| Henry Disston (exact or similar names) - Philadelphia, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 07, 1874 |
| Granted: |
Nov. 17, 1874 |
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Patent Pictures:
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1 | 2
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Russ Allen.
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Description: |
| Circular saw grinding machine with a rotating table for the blade with two grindstones on opposite sides of the center of the blade. Grindstones can be angled. |
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