US Patent: 1,251,934
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| Wrench
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Patentee:
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| Wallace A. Steinmetz (exact or similar names) - Thurston, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 14, 1917 |
| Granted: |
Jan. 01, 1918 |
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Patent Pictures:
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Wallace A. Steinmetz Pat. January 1, 1918 |
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Stan Schulz
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Description: |
| The patent envisions a cheaply made tool with parallel round shanks. The movable jaw slides on these, and is set in position by a set screw. |
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