US Patent: 188,298
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| Coach-Wrench
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Patentee:
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| Richard Jones (exact or similar names) - Boston, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 19, 1877 |
| Granted: |
Mar. 13, 1877 |
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Patent Pictures:
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Richard Jones Pat. March 13, 1877 |
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Stan Schulz
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Description: |
| The lower portion of the movable jaw has two "prismatic pins" which grip the main shank to hold adjustment. That portion can be moved sufficiently to disengage the grip to allow for adjustment. |
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