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| Patents for William S. Henderson | |||||
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| Number | Date | Patentee | Title | Type | |
| 246,019 | Aug. 23, 1881 | F.F. Landis | Traction Engine | steam traction engines | |
| 266,698 | Oct. 31, 1882 | F.F. Landis | Traction Engine | steam traction engines | |