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| Patents for William H. Inslee | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 54,153 | Apr. 24, 1866 | J.L. Hewes | Improvement in cut-off valves | |
 | 94,316 | Aug. 31, 1869 | C.L. Inslee, W.H. Inslee | Improvement in steam-engine valve-gear | |