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All Patents in class 29/DIG.63
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
  1,700,114Jan. 22, 1929C.H. ThompsonSurface Polishing Machine
  2,074,257Mar. 16, 1937H. Ernst, M.E. MartellottiVibrating Tool Metalworking Machine
  2,384,225Sep. 04, 1945J.C. WilsonMethod and Apparatus for Maintaining Uniform Temperature of Diverse Fluids in a Machine Tool
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