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Patents for John W. Sargent | |||||
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Picture | Number | Date | Patentee | Title | |
545,414 | Aug. 27, 1895 | J.W. Sargent | Exhaust Valve for Steam Engines | ||
![]() | 737,495 | Aug. 25, 1903 | W.O. Tourgee, R.H. Rice, J.W. Sargent | Valve-gear for steam-engines |