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Patents for William Lelgemann
Patents 1 - 2 of 2
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PictureNumberDatePatenteeTitle
  2,500,787Mar. 14, 1950W. LelgemannFluid Fuel Burner Apparatus for Effecting Diffusion Combustion
  CA-468,242Sep. 19, 1950W. LelgemannBurner Apparatus and Methods of Effecting Diffusion Combustion
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