US Patent: 22,561
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| Stump-extractor
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Patentee:
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| John L. Knowlton (exact or similar names) - Glassborough, NJ |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Jan. 11, 1859 |
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Jeff Joslin
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Description: |
| This is the earliest patent granted to John L. Knowlton, who, following the Civil War, invented and manufactured a successful reciprocating ship's saw. See patent 40,344 for the first patented version of that saw. |
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