US Patent: 576,855
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| Monkey Wrench
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Patentees:
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| William Butler Kelly (exact or similar names) - Barboursville, KY |
| Henry Bowman (exact or similar names) - Barboursville, KY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 09, 1896 |
| Granted: |
Feb. 09, 1897 |
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Patent Pictures:
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William Butler Kelly and Henry Bowman patent February 9, 1897 |
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Stan Schulz
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Description: |
| Rack teeth on the swinging handle engage rack teeth on the movable jaw to hold its adjustment. |
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