US Patent: 444,450
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| Wrench
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Patentee:
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| Henry Marshall (exact or similar names) - Lincoln, NE |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 23, 1890 |
| Granted: |
Jan. 13, 1891 |
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Patent Pictures:
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Henry Marshall patent January 13, 1891 |
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Stan Schulz
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Description: |
| A swinging lever with teeth acts as a clamp to hold the position of the sliding adjustable jaw which has teeth on the back side. A locking ring on the end of the lever can be swung around the end of the handle to hold the adjustment.
Corresponding Canadian patent no. CA-36,140 was issued to Henry Marshal and Samuel K. Huntsinger on March 14, 1891. |
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