US Patent: 296,877
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Wrench
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Patentee:
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Barney Ross (exact or similar names) - Sterling, OH |
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Patent Dates:
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Applied: |
Dec. 26, 1883 |
Granted: |
Apr. 15, 1884 |
Patent Pictures:
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Barney Ross patent April 15, 1884 |
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Stan Schulz
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Description: |
The toggle in the movable jaw has threads that moves a clamping wedge. A key element of the patent is the shape of the parts and the way they are assembled.
The comparable Canadian patent is no. CA-19,834 issued July 18, 1884.
Ken Cope's "American Wrench Makers 1830-1930" connects this patent and John Lee's Nov. 20, 1883 patent no. 288,713 to wrenches made by the Sterling Wrench Co. of Sterling, OH. |
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