US Patent: 181,699
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| Improvement in Wrenches
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Patentee:
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| Thomas McDonough (exact or similar names) - Montclair, NJ |
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Patent Dates:
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| Applied: |
Feb. 26, 1876 |
| Granted: |
Aug. 29, 1876 |
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Patent Pictures:
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Thomas McDonough Pat. August 29, 1876 |
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Stan Schulz
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Description: |
| The patent is an expansion and improvement on McDonough's February 22, 1876 calipers and dividers patent (no. 173,802). This patent adds wrench jaws to the adjustment mechanism previously patented.
A known example has no legible markings. |
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