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All Patents in class 417/443
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
27,128Feb. 14, 1860B. HollyPump Liftpumps
120,325Oct. 24, 1871A.K. RiderImprovement in Air Engineshot air engines
137,765Apr. 15, 1873R. DudgeonImprovement in hydraulic jackshydraulic jacks
162,044Apr. 13, 1875E.M. DudgeonImprovement in hydraulic jackshydraulic jacks
302,070Jul. 15, 1884T.H. WatsonHydraulic jackhydraulic jacks
2,481,183Sep. 06, 1949H.R. WelbyPump Priming Meansreciprocating pumps
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