US Patent: 470,626
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| Wrench
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Patentee:
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| William J. Walker (exact or similar names) - St. Louis, MO |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 16, 1891 |
| Granted: |
Mar. 08, 1892 |
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Patent Pictures:
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William J. Walker patent March 8, 1892 |
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Stan Schulz
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Description: |
| A spring-loaded lug in the movable jaw presses interior teeth into a rack on the shank to hold the adjustment. |
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