Drilldown: Patents

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Patents > Inventors : Bruce J. Penney or George Frye or John V Rogers or Phil Crosby & Company : Anderson Jeffrey J, Moore John S, Deur Ted E, Joy Roy or Dubner Computer Systems, Inc. or Fluke Corp or Tektronix Inc or The Grass Valley Group, Inc. or XFRM Inc or Zeelan Technology, Inc. & Filing date: 1963 & Cites : Patent US 2922074A or Patent US 3531675A or None

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