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All Patents in class 417/521
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
FX-9,221Oct. 31, 1835J. RedelspergerPumppumps
805,000Nov. 21, 1905W.E. BlairDriving Mechanism for two Pump-Plungersfuel pumps
2,138,194Nov. 29, 1938E.M. PfauserHydraulic Pumphydraulic pumps
2,368,187Jan. 30, 1945L.E. WilliamsPump
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