Drilldown: Patents

Patents > Inventors : Bruce Hofer or George Frye or John Kobbe or Linley Gumm or Phil Crosby & Filing date: 1970 - 1979 & Cites : Patent GB 460562A or Patent US 2280531A or Patent US 2883619A or Patent US 3293474A or Patent US 3358159A or Patent US 4146844A or Patent US 4150420A or Patent US 4255003A or None & Links : 7T11 or S-52 or Time domain reflectometers

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