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Patents for Raymond J. Traupmann
Patents 1 - 2 of 2
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PictureNumberDatePatenteeTitle
  2,824,381Feb. 25, 1958R.J. TraupmannPre-Indicator of Pipe Positions and Bends
  2,867,261Jan. 06, 1959R.J. TraupmannPipe Bender with Bend Indicator Means
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