US Patent: 620,772
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| Wrench
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| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 12, 1899 |
| Granted: |
Mar. 07, 1899 |
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Patent Pictures:
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Owen Hastings patent March 7, 1899 |
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Stan Schulz
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Description: |
| A spring-tensioned lever handle has gripping teeth that mesh with teeth on the inner surface of the movable jaw to set adjustment. A spring catch on the end of the lever handle holds the handle closed and maintain the adjustment. |
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