US Patent: 450,676
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| Pipe Wrench
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Patentee:
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| Thomas Newman (exact or similar names) - Poplar Bluff, MO |
| USPTO Classifications: |
| 81/98 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 30, 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: |
| Swinging hook jaw pipe wrench. The patent is for the bifurcation of the the hook jaw.
Corresponding Canadian patent no. CA-37,074 (assigned to William O. Campbell of St. Louis, MO ) was granted July 28, 1891, and corresponding British patent GB-189106823 was registered April 21, 1891.
See also patent no. 450,972. |
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