US Patent: 294,413
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| Wrench
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Patentee:
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| Judson A. Stanton (exact or similar names) - Sauk Rapids, MN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 09, 1884 |
| Granted: |
Mar. 04, 1884 |
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Stan Schulz
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Description: |
| Sleeves within the socket head provide size adjustment. They are advanced and retracted by interacting pins and grooves, driven by a central hollow spindle. The top of the socket head is round; the bottom is square. |
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