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All Patents in class 474/73
Patents 1 - 3 of 3
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PictureNumberDatePatenteeTitle
2,346,731Apr. 18, 1944J.G. CollinsDrill press
2,566,579Sep. 04, 1951F.L. NicholsMultiple-speed drill press
  5,690,567Nov. 25, 1997M. Lindner, J.F. DeNijsTransmission for Converting Rotary Motion into Linear Motion
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