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| Patents for James Doyle | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,084X | Jul. 19, 1830 | B. Zoll, J. Doyle | Manufacturing soap by steam | ||
| 71,279 | Nov. 26, 1867 | P. Clifford | Improvement in Adjustable Spirit Levels | inclinometers | |
| 134,207 | Dec. 24, 1872 | W. Kearney | Adjustable Pipe-Tongs | pipe tongs | |
| 298,294 | May 06, 1884 | J. Doyle | Pipe Wrench | chain and strap wrenches | |