US Patent: 54,888
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| Improvement in Wrenches
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Patentee:
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| George P. Ganster (exact or similar names) - New York, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
May 22, 1866 |
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Patent Pictures:
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G. P. Ganster Pat. May 22, 1866 |
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Stan Schulz
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Description: |
| A volute-threaded adjusting nut in the middle of the handle engages arc-shaped notches in the shank of the movable jaw. |
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