US Patent: 642,577
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| Wrench
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Patentee:
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| Willis Osgood Boykin (exact or similar names) - Jackson, TN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Nov. 13, 1899 |
| Granted: |
Feb. 06, 1900 |
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Patent Pictures:
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Willis O. Boykin patent February 6, 1900 |
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Stan Schulz
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Description: |
| Quick adjust; a spring-loaded toothed cam lever on the movable jaw engages rack teeth on the main shank. The back of the movable jaw has "finger receiving concavities." |
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