US Patent: 2,628,522
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| Open-End Wrench Convertible To Box-Type Wrench
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Patentee:
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| Fred E. Kraft (exact or similar names) - Chicago, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 26, 1950 |
| Granted: |
Feb. 17, 1953 |
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Patent Pictures:
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Fred E. Kraft patent Febr. 17, 1953 |
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Stan Schulz
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Description: |
| The open-end jaws fold back into openings which result in a small box opening.
Patent numbers 390,422, 896,458, 1,006,679, 1,284,731, 1,343,882 and 1,424,676 are cited as references. |
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