US Patent: 141,794
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| Wrenches
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Patentee:
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| William Johnson (exact or similar names) - Milwaukee, WI |
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Patent Dates:
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| Applied: |
Nov. 16, 1872 |
| Granted: |
Aug. 12, 1873 |
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Patent Pictures:
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William Johnson Pat. Aug. 12, 1873 |
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Stan Schulz
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Description: |
| An eccentric toothed portion and the toothed taper grip the inside surface of barrel bung bushings. Used to insert metal bushings in wooden beer barrels. Johnson also patented another bushing wrench on Dec. 3, 1872 (Pat. no. 133,536). |
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