US Patent: 562,329
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| Wrench attachment for brace
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Patentee:
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| Henry A. Coolidge (exact or similar names) - East Jaffrey, NH |
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Patent Dates:
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| Applied: |
Feb. 19, 1896 |
| Granted: |
Jun. 16, 1896 |
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Patent Pictures:
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Henry A. Coolidge patent June 14, 1896 |
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Stan Schulz
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Description: |
| Jaws hinged together slide in a frame which opens them as they extend. A spring retracts and closes them.
The COOLIDGE BIT BRACE WRENCH and a larger version with a ratchet "T" handle marketed as the COOLIDGE AUTOMATIC RATCHET WRENCH were produced in the early 20th Century. |
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