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All Patents of Type: valve gear
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
244,758Jul. 26, 1881F.F. LandisSteam-engine valve-gearvalve gear
263,301Aug. 29, 1882C. AultmanValve-gearvalve gear
403,455May 14, 1889E.M. BirdsallValve Gearvalve gear
491,940Feb. 14, 1893C.O. HeggemBalance Slide Valvevalve gear
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