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All Patents in class 172/292
Patents 1 - 12 of 12
First set of recordsLast set of records
16,937Mar. 31, 1857D.B. SpencerSteam Plowsteam plows
RE855Nov. 22, 1859J.W. FawkesSteam Plowsteam plows
29,358Jul. 31, 1860T.H. BurridgeSteam Plowsteam plows
30,986Dec. 18, 1860J. ReynoldsSteam Plowsteam plows
101,395Mar. 29, 1870A.L. TaveauAmerican Steam Plowsteam plows
117,113Jul. 18, 1871Z. RiderSteam Plowing Machinesteam plows
217,506Jul. 15, 1879B.S. BensonTraction Engine and Steam Plowsteam traction engines
251,513Dec. 27, 1881B.S. BensonSteam Plowsteam plows
263,279Aug. 22, 1882T.T. WoodruffSteam Plowsteam plows
287,709Oct. 30, 1883B.F. OppRoad Enginesteam road engines
334,333Jan. 12, 1886B.S. BensonTraction Enginetracks
607,014Jul. 12, 1898C.B. BostwickPower Mechanism for Traction Enginestracks
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