US Patent: 17,229
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| Wrench
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Patentee:
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| Charles Pinder (exact or similar names) - Lowell, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
May 05, 1857 |
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Patent Pictures:
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Charles Pinder Pat. May 5, 1857 |
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Stan Schulz
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Description: |
| The adjustment is held by a sliding wedge key contained within the adjustable jaw. |
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