Drilldown: Patents

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Patents > Inventors : Bozidar Janko or Conrad Odenthal or John Addis or Linley Gumm or Phil Crosby or Thomas S. Buzak & Filing date: 1980 & Grant date: 1981 & Cites : Patent US 3331983A or Patent US 3531675A or Patent US 3558930A or Patent US 3689752A or Patent US 3725792A or Patent US 3740539A or None

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