US Patent: 1,251,789
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| Wrench
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Patentee:
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| Hans P. Larsen (exact or similar names) - Portland, OR |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 19, 1917 |
| Granted: |
Jan. 01, 1918 |
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Patent Pictures:
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Hans P. Larsen Pat. January 1, 1918 |
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Stan Schulz
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Description: |
| The side lever moves the wedge which releases and re-sets the adjusting rack. The patent shows the jaws with default pipe teeth and smooth jaw covers when used as a nut wrench. |
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