US Patent: 103,653
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| Wrench
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Patentee:
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| Turner C. Purington (exact or similar names) - Lincoln, CA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
May 31, 1870 |
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Patent Pictures:
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T. C. Purington Pat. May 31, 1870 |
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Stan Schulz
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Description: |
| The adjusting knurl is held firmly between the handle ferule and "steps" on the shank. The adjusting threads are concealed within the movable jaw, and thus protected from dirt and damage. |
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