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All Patents in class 219/602
Patents 1 - 2 of 2
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PictureNumberDatePatenteeTitle
  2,903,569Sep. 08, 1959G.H. Hochmuth, J.M. DavisMethod of Forming Spiral Blades
  2,958,753Nov. 01, 1960G.H. Hochmuth, J.M. DavisDie Set for Forming Cutter Blades
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