US Patent: 173,439
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| Improvement in cutter-heads for planing-machines
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Patentee:
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| Edwin Benjamin (exact or similar names) - Chicago, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 18, 1875 |
| Granted: |
Feb. 15, 1876 |
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Patent Pictures:
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1 | 2
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Jeff Joslin
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Description: |
| Concave caps with dovetail fastenings for holding the knives to the head. The design is an improvement on the inventor's patent 142,669. |
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