Drilldown: Patents

Patents > Inventors : Bozidar Janko or Bruce Hofer or Bruce J. Penney or Cornelis Teunis Veenendaal or Dan Knierim or George Frye or John Addis or John Kobbe or Linley Gumm or Richard A. Jackson & Grant date: 1960 - 1969 & Cites : Patent US 3293474A or Patent US 3331983A or Patent US 3426237A or None

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