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| Patents for William B. Mack | |||||
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| Number | Date | Patentee | Title | Type | |
| 301,735 | Jul. 08, 1884 | W.B. Mack | Injector | water injectors | |
| 575,363 | Jan. 19, 1897 | W.B. Mack | Injector | feedwater apparatus | |