US Patent: 539,625
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| Wrench
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Patentee:
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| Joseph P. Lavigne (exact or similar names) - New Haven, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 18, 1895 |
| Granted: |
May 21, 1895 |
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Patent Pictures:
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Joseph P. Lavigne patent May 21, 1895 |
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Stan Schulz
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Description: |
| The patented features are the "notch" in the adjusting knurl that holds it in place, combined with the "recesses" in the wider portion of the central slot that hold the flared sides of the shank of the movable jaw.
Seymour & Earl - patent attorneys
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