US Patent: 1,919,593
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| Chain Pipe Wrench
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Patentees:
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| Louis Lassen (exact or similar names) - Elizabeth, NJ |
| William Boehm (exact or similar names) - Roselle Park, NJ |
| USPTO Classifications: |
| 81/68 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 25, 1930 |
| Granted: |
Jul. 25, 1933 |
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Patent Pictures:
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Louis Lassen and William Boehm patent July 25, 1933 |
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Stan Schulz
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Description: |
| The gripping teeth are on the side of the handle. The links of the chain are formed of solid stock. The "ear" or "lug" on the end of the shank hooks into the narrow space between two succeeding pivot pins. |
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