US Patent: 77,107
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Wrench
Improvement in Wrenches
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Patentee:
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| Thomas A. Searle (exact or similar names) - Providence, RI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Apr. 21, 1868 |
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Patent Pictures:
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Thomas A. Searle Pat. April 21, 1868 |
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Stan Schulz
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Description: |
| A geared pinion on the end of the handle engages rack teeth on the movable jaw. A spring-loaded collar on the handle acts to hold the adjustment. |
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