US Patent: 12,416
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| Machine for cutting tenons
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Patentees:
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| Henry G. Chamberlain (exact or similar names) - St. Johnsbury, VT |
| James Ramsay (exact or similar names) - St. Johnsbury, VT |
| Joel Hastings (exact or similar names) - St. Johnsbury, VT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Feb. 20, 1855 |
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Jeff Joslin
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