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| Patents for Philetus B. Hillyer | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 191,427 | May 29, 1877 | P.B. Hillyer | Improvement in Combined Anvil and Vise | |
 | 217,795 | Jul. 22, 1879 | P.B. Hillyer | Combined Forge, Emery Wheel and Drill | |