US Patent: 635,806
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| Pipe Wrench
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Patentee:
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| David Robert Ramsey (exact or similar names) - New Haven, PA |
| USPTO Classifications: |
| 81/97 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 29, 1898 |
| Granted: |
Oct. 31, 1899 |
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Patent Pictures:
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David R. Ramsey patent Oct. 31. 1899 |
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Stan Schulz
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Description: |
| The position of the movable jaw is set by rack teeth and a set screw. A spring engages the pivoting toothed section of the movable jaw with the work. |
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