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All Patents in class 431/284
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
  2,404,853Jul. 30, 1946W.S. LandonFluid Control for Oil Burners
  2,494,394Jan. 10, 1950W.S. LandonHeating Apparatus and Fuel Flow Controlling Means Therefor
  2,973,727Mar. 07, 1961R.D. NorthcotePulverised Fuel Burner
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