US Patent: 191,493
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| Wrench
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Patentee:
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| Alexander V. Trust (exact or similar names) - New York, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 10, 1877 |
| Granted: |
May 29, 1877 |
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Patent Pictures:
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Alexander V. Trust Pat. May 29, 1977 |
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Stan Schulz
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Description: |
| The swinging hook jaw and the smaller gripping jaw are linked to the handle in such a way that the bearing force of the smaller jaw is in line with the center of the hook jaw. The wrench is self-adjusting. |
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