US Patent: 237,780
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| Bit-stock
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Patentee:
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| Nelson N. Spofford (exact or similar names) - Haverhill, MA |
| USPTO Classifications: |
| 81/35 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 13, 1880 |
| Granted: |
Feb. 15, 1881 |
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Kirk Eppler
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Description: |
| Method of constructing a brace with a cast lower portion and a bent-rod upper portion. The two pieces are attached by a tapered thread, with the handle slipped onto the rod portion before assembly. |
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