US Patent: 591,553
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| Wrench
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Patentee:
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| Johannes H. Johnson (exact or similar names) - North Cape, WI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 21, 1897 |
| Granted: |
Oct. 12, 1897 |
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Patent Pictures:
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Johannes H. Johnson patent October 12, 1897 |
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Stan Schulz
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Description: |
| "My invention consists of a wrench having its bar provided with rack-teeth and a sliding jaw having teeth to engage therewith, a wedge-shaped clamp-bar, and a spring-actuated locking device for engaging and disengaging said clamp-bar." -from the description
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