US Patent: 454,896
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| Wrench
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Patentee:
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| Charles Augustus Adams (exact or similar names) - West Gardner, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Nov. 24, 1890 |
| Granted: |
Jun. 30, 1891 |
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Patent Pictures:
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Charles Augustus Adams patent June 30, 1891 |
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Stan Schulz
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Description: |
| Spring-loaded pipe-gripping dovetailed jaw inserts in both the fixed and movable jaws of a monkey wrench are arranged so that the wrench will turn pipe in either direction without repositioning. |
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