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| Patents for William H. Wigmore | |||||
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| Picture | Number | Date | Patentee | Title | |
| 249,214 | Nov. 08, 1881 | W.H. Wigmore | Combined Gas, Air and Steam Rotary Engine | ||
| 260,513 | Jul. 04, 1882 | W.H. Wigmore | Gas Motor Engine | ||