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All Patents in class 307/152
Patents 1 - 2 of 2
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PictureNumberDatePatenteeTitle
  4,081,801Mar. 28, 1978H.J. Keen, H.C. ThomasElectronic Measuring System with Pulsed Transducer
  4,238,784Dec. 09, 1980H.C. Thomas, H.J. KeenElectronic Measuring System with Pulsed Power Supply and Stability Sensing
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