US Patent: 2,218,313
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| Wrench
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Patentees:
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| Glen W. Hamilton (exact or similar names) - Kansas City, MO |
| Vinton H. Rowlett (exact or similar names) - St. Louis, MO |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 10, 1937 |
| Granted: |
Oct. 15, 1940 |
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Patent Pictures:
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Glen W. Hamilton and Vinton H. Rowlett patent Oct. 15, 1940 |
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Stan Schulz
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Description: |
| Box type grip activated by a lever handle with a cam end. Battery cable clamp bolts are one application noted in the specifications. |
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