US Patent: 463,044
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| Wrench
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Patentee:
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| Cicero T. Hammack (exact or similar names) - Birmingham, AL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 13, 1891 |
| Granted: |
Nov. 10, 1891 |
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Patent Pictures:
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Cicero T. Hammack patent November 10, 1891 |
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Stan Schulz
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Description: |
| The patented feature is the replaceable jaw insert which can be used to adjust size or suitability for a specific purpose. The inserts are held by dovetail combined with spring clip or set screw. |
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