US Patent: 258,137
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| Wrench
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Patentee:
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| Joseph Schwegler (exact or similar names) - Buffalo, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 28, 1882 |
| Granted: |
May 16, 1882 |
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Patent Pictures:
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Joseph Schwegler patent May 16, 1882 |
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Stan Schulz
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Description: |
| The jaws are opened and closed by a left- and right-hand threaded central threaded shank. One or two guide pins keep the jaws aligned.
Wrenches of this type are frequently found with the names of European makers. |
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