US Patent: 189,366
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| Wrench
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Patentees:
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| John D. Lovell (exact or similar names) - Worcester, MA |
| Aury Gates Coes (exact or similar names) - Worcester, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 21, 1877 |
| Granted: |
Apr. 10, 1877 |
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Patent Pictures:
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A. G. Coes Pat. Apr. 10, 1877 |
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Stan Schulz
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Description: |
| The patent is for a hollow cast metal wrench handle, tapped with left-handed threads so the normal motion will tighten the handle to the shank. The patent includes modification of the ferule to mate the handle and ferule. Aury Gates Coes had been killed in a carriage accident in December, 1875. |
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