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 |
Patent Pictures:
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1 | 2
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John Ryan Pat. May 31, 1892 |
USPTO (New site tip) Google Patents
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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" |
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