US Patent: 503,677
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| Wrench
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Patentee:
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| Samuel W. Putnam (exact or similar names) - Elizabeth, NJ |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 29, 1892 |
| Granted: |
Aug. 22, 1893 |
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Patent Pictures:
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Samuel W. Putnam Pat. Aug. 22, 1893 |
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Stan Schulz
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Description: |
| The patent describes three different linkages to allow limited motion between two alligator wrench jaws. The opening to accommodate several sizes of square nuts is incidental and not claimed in the patent. |
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