US Patent: 307,252
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| Bit-holder
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Patentee:
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| Arthur H. Armstrong (exact or similar names) - Plainville, CT |
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Patent Dates:
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| Applied: |
Jul. 02, 1884 |
| Granted: |
Oct. 28, 1884 |
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Patent Pictures:
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Image courtesy and (C) Martin J. Donnelly, www.mjdtools.com |
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Kirk Eppler
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Description: |
| This brace gets an "A" rating for rarity from Pearson's book. |
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