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| Patents for Paris Tool Mfg. Co. Ltd. | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-48,953 | May 16, 1895 | W. Houghton | Improvement in Pipe Wrenches | pipe wrenches | |
| 567,715 | Sep. 15, 1896 | W. Houghton | Pipe Wrench | pipe wrenches | |