US Patent: 2,572,492
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| Method of Making Adjustable Jaw Wrenches
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Patentee:
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| Karl F. W. Kempf (exact or similar names) - Buffalo, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 11, 1948 |
| Granted: |
Oct. 23, 1951 |
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Patent Pictures:
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Karl F. W. Kempf patent October 23, 1951 |
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Stan Schulz
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Description: |
| The patent is for the process of broaching a finished slide way for an adjustable jaw wrench. A careful examination of McKaig-Hatch wrenches of the period should reveal if this manufacturing process was employed.
Emil Neuhook - patent attorney
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