US Patent: 476,079
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| Wrench
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Patent Dates:
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| Applied: |
Feb. 27, 1892 |
| Granted: |
May 31, 1892 |
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Patent Pictures:
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1 | 2
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John Ryan Pat. May 31, 1892 |
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Stan Schulz
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Description: |
| The patent is an improvement on pat. no. 339,813. The improvement is for firmer connections between the handle portions, and a firmer connection of the adjusting screw to the handle.
The wrench using these patents is marked "BARNES TOOL CO // PAT 1886 IMPR 1892" A very different wrench design bears the same markings. Some of these variations are shown in entries in "45spaces/vintage-wrenches." |
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