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| Patents for William C. Allen | |||||
| Number | Date | Patentee | Title | Type | |
| 168,607 | Oct. 11, 1875 | E. Brule | Improvement in Washer-Cutters | washer cutters | |
| 261,292 | Jul. 18, 1882 | W.C. Allen | Drag-saw | drag saws | |