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All Patents in class 318/577
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
  2,511,956Jun. 20, 1950T.A. WetzelTracer Controlled Machine Tool
  2,832,894Apr. 29, 1958R.H. Eisengrein, R.J. W, D.A. StraznickasAutomatic machine
  2,882,476Apr. 14, 1959T.A. WetzelMotor Control System
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