Drilldown: Patents

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Patents > Inventors : Dan Knierim or George Frye or Richard Cabot & Company : Audio Precision or Frye Electronics Inc or Tektronix Inc or Zeelan Technology, Inc. & Cites : Patent GB 460562A or Patent US 3011129A or Patent US 3531675A or Patent US 3689752A or Patent US 4048577A or Patent US 4322688A or Other or None

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