US Patent: 448,958
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| Wrench
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Patentees:
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| Robert Haberthur (exact or similar names) - New York, NY |
| John M. Stowell (exact or similar names) - New York, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 11, 1890 |
| Granted: |
Mar. 24, 1891 |
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Patent Pictures:
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Robert Habethur and John M. Stowell patent March 24, 1981 |
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Stan Schulz
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Description: |
| Rack teeth on the movable jaw engage rack teeth on a spring-loaded adjusting lever. The jaws have teeth and parallel faces making the wrench suitable for pipe or nuts. |
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