Drilldown: Patents

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Patents > Inventors : Cornelis Teunis Veenendaal or John Kobbe or Linley Gumm or Phil Crosby & Filing date: 1980 - 1989 & Grant date: August 15, 1989 & Cites : Patent US 3293473A or Patent US 3426237A or Patent US 3430093A or Patent US 3629731A or Patent US 3689752A or Patent US 3725792A or None

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