US Patent: 289,069
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| Wrench
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Patentee:
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| John H. Coes (exact or similar names) - Worcester, MA |
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Patent Dates:
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| Applied: |
Oct. 17, 1883 |
| Granted: |
Nov. 27, 1883 |
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Patent Pictures:
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John H. Coes Pat. Nov. 27, 1883 |
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Stan Schulz
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Description: |
| The patent is for a case-hardened or steel insert at the base of the adjustable jaw of a "Coes Pattern" wrench. (The jaws were cast "malleable" iron.)
A revised version with the hard insert placed "higher" in the movable jaw received patent no. 301,680. |
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