Drilldown: Patents

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Patents > Inventors : George Frye or Linley Gumm & Company : Tektronix Inc or The Grass Valley Group, Inc. or Tony Sprando & Filing date: 1960 - 1969 & Cites : Patent GB 460562A or Patent US 2883619A or Patent US 2922074A or Patent US 3331983A or Patent US 3413513A or Patent US 3740539A or Patent US 4048577A or None

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