US Patent: 483,785
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| Pipe Wrench
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Patentee:
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| George S. Hilts (exact or similar names) - Groton, NY |
| USPTO Classifications: |
| 81/69 |
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Patent Dates:
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| Applied: |
Mar. 23, 1892 |
| Granted: |
Oct. 04, 1892 |
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Patent Pictures:
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1 | 2
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George S. Hilts patent October 4, 1892 |
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Stan Schulz
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Description: |
| The obvious feature of the patent is that screwing in the handle tightens the chain.
A 1904 hardware catalog lists sizes from 18 inch to 80 inch handles. |
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