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All Patents in class 417/564
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
1,428,402Sep. 05, 1922G.F. SteedmanReciprocating Pump or Compressorreciprocating pumps
1,708,158Apr. 09, 1929E.H. StedmanValve structure for compressorsair compressors
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