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| Patents for Joseph W. Calef | |||||
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| Number | Date | Patentee | Title | Type | |
| 240,882 | May 03, 1881 | J.W. Calef | Lead Seal Press | pliers | |
| CA-16,416 | Feb. 28, 1883 | J.W. Calef | Improvements On Pipe Cutters and Wrenches | wrenches | |