US Patent: 451,022
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| Wrench
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Patentee:
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| James H. Brown (exact or similar names) - North Evanston, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 22, 1890 |
| Granted: |
Apr. 28, 1891 |
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Patent Pictures:
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James H. Brown patent April 28, 1891 |
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Stan Schulz
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Description: |
| A toothed pawl within a center slot in the sliding jaw engages rack teeth in one edge in a center slot in the handle of the tool.
The parts are made of sheet steel stampings. |
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