US Patent: 450,972
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| Pipe Wrench
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Patentee:
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| Thomas Newman (exact or similar names) - Poplar Grove, MO |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 10, 1891 |
| Granted: |
Apr. 21, 1891 |
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Patent Pictures:
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Thomas Newman patent April 21, 1891 |
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Stan Schulz
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Description: |
| Bifurcated jaw connected to main handle by parallelogram linkage. Corresponding British patent GB-189102782 was registered Feb. 16, 1891.
See also patent no. 450,676. |
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