US Patent: 295,204
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| Pipe Wrench
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Patentees:
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| Frank A. Schramm (exact or similar names) - Philadelphia, PA |
| Ambrosius Modery (exact or similar names) - Philadelphia, PA |
| USPTO Classifications: |
| 81/99 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 07, 1883 |
| Granted: |
Mar. 18, 1884 |
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Patent Pictures:
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Frank A. Schramm and Ambrosius Modery patent March 18, 1884 |
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Stan Schulz
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Description: |
| The hook jaw of this self-adjusting pipe wrench is held in engagement by coiled springs. |
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