US Patent: 446,547
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| Pipe Wrench
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Patentees:
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| William E. Goodnow (exact or similar names) - Columbus, IN |
| Homer A. Margason (exact or similar names) - Columbus, IN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 30, 1890 |
| Granted: |
Feb. 17, 1891 |
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Patent Pictures:
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William E. Goodnow and Homer A. Margason patent February 17, 1891 |
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Stan Schulz
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Description: |
| Self-adjusting hook-jaw pipe wrench. The pivot for the hook jaw can shift between several notches to adjust to different ranges of sizes. |
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