US Patent: 449,627
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| Pipe Wrench
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Patentee:
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| Milton H. McNair (exact or similar names) - Meadville, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 26, 1891 |
| Granted: |
Mar. 31, 1891 |
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Patent Pictures:
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Milton H. McNair patent March 31, 1891 |
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Stan Schulz
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Description: |
| The hinged jaw's effective gripping range is shifted by the screw linkage which also moves the fulcrum point for the lever handle. |
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