US Patent: 12,935
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Wrench Improved Screw-Wrench
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Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Apr. 14, 1853 |
Granted: |
May 22, 1855 |
Patent Pictures:
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Frances S. Coburn Pat. May 22, 1855 |
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Description: |
The patent is for an adjustable box end wrench.
Ruggles, Nourse, Mason & Co. produced plows and other agricultural implements. |
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