US Patent: 10,189
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| Carpenter's brace and bit-fastener
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Patentee:
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| Howard Perkins (exact or similar names) - South Bridgewater, MA |
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Patent Dates:
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| Granted: |
Nov. 01, 1853 |
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Patent Pictures:
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1 | 2
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Kirk Eppler
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Description: |
| "The nature of my improvement consists in a new mode of fastening the bit into the socket by a slide key as described in the drawing." |
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