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| Patents for William H. Cahill | |||||
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| Picture | Number | Date | Patentee | Title | |
| 870,241 | Nov. 05, 1907 | W.H. Cahill, W.F. MacGregor | Draft Apparatus for Wagons and the Like | ||
| 1,238,102 | Aug. 28, 1917 | W.H. Cahill | Cylinder Machine | ||