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All Patents in class 417/473
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
9,703XJun. 02, 1836E. WhitfieldFrictionless pumppumps
6,400Apr. 24, 1849W.T. BarnesBellowsblacksmith
213,276Mar. 18, 1879D. BickfordPortable Pump or Enginepiston pumps
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