US Patent: 148,629
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| Bung-Bush Wrenches
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Patentee:
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| John B. Smith (exact or similar names) - Milwaukee, WI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 08, 1873 |
| Granted: |
Mar. 17, 1874 |
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Patent Pictures:
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John B. Smith Pat. March 17, 1874 |
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Stan Schulz
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Description: |
| Two semi-circular cams wedge out against the inside of the bushing. The bushing shown in the drawings has parallel sides rather than tapered sides like those shown in patent nos. 118,617, 141,794 and 143,757. |
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