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All Patents in class 92/95
Patents 1 - 3 of 3
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PictureNumberDatePatenteeTitle
2,014,541Sep. 17, 1935F.W. WappatPressure regulating valve
  2,306,768Dec. 29, 1942D.D. WileControl Device
  2,520,386Aug. 29, 1950E.J. DillmanRefrigeration Expansion Valve
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