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All Patents in class 180/6.7
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
231,569Aug. 24, 1880D.J. HavenstriteTraction Enginesteam traction engines
249,451Nov. 15, 1881B.S. BensonTraction Enginesteam traction engines
484,828Oct. 25, 1892D.S. StewartTraction Enginetracks
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