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All Patents in class 74/837
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
236,052Dec. 28, 1880E.A. MarshSteam-engine valve-gearsteam engine valve gear
244,807Jul. 26, 1881A.J. HoagReversing Gear for Steam Traction Enginestraction engine propulsion components
RE9,951Nov. 29, 1881A.J. HoagReversing Gear for Steam Traction Enginestraction engine propulsion components
263,301Aug. 29, 1882C. AultmanValve-gearvalve gear
308,567Nov. 25, 1884E.A. MarshReversing-gear for steam-enginessteam engines
692,913Feb. 11, 1902W.N. RumelyValve Gearingtraction engine valve gear
1,395,331Nov. 01, 1921H.O. BakerValve Gearsteam engine valve gear
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