US Patent: 580,412
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| Wrench
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Patentees:
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| John Leask (exact or similar names) - Gore Bay, ON Canada |
| Thomas Wm. Leask (exact or similar names) - Gore Bay, ON Canada |
| USPTO Classifications: |
| 81/94 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 08, 1896 |
| Granted: |
Apr. 13, 1897 |
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Patent Pictures:
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John Leask and Thomas Wm. Leask patent April 13, 1897 |
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Stan Schulz
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Description: |
| Cam lever locks adjustment of the movable jaw. The movable jaw structure includes a swing-out pipe gripping jaw face. |
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