US Patent: 151,635
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| Wrenches
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Patentees:
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| William P. Uhlinger (exact or similar names) - Philadelphia, PA |
| Philip J. Hoffliger (exact or similar names) - Philadelphia, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 02, 1874 |
| Granted: |
Jun. 02, 1874 |
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Patent Pictures:
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W. P. Uhlinger and P. J. Hoffliger Pat. June 2, 1874 |
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Stan Schulz
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Description: |
| The wrench has "sockets" on opposite sides for square and hex nuts. The cut-out "corners" cause the wrench to bear on the flats of the nuts rather than the corners. |
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