US Patent: 427,672
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| Monkey Wrench
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Patentee:
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| Henry B. Cary (exact or similar names) - Los Angeles, CA |
| USPTO Classifications: |
| 81/93 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 09, 1889 |
| Granted: |
May 13, 1890 |
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Patent Pictures:
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Henry B. Cary patent May 13, 1890 |
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Stan Schulz
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Description: |
| The cam lever on the back side of the movable jaw tightens and locks the grip, allowing the wrench to be used as a vise. |
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