US Patent: 200,348
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| Wrench
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Patentee:
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| Solomon Schwerdt (exact or similar names) - Roseville, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 29, 1877 |
| Granted: |
Feb. 12, 1878 |
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Patent Pictures:
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Solomon Schwerdt patent February 12, 1878 |
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Stan Schulz
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Description: |
| The patent is for the spring-loaded "stirrup" in the movable jaw and the corresponding grooves in the movable jaw and notches in the main shank. |
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