Drilldown: Patents

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Patents > Inventors : John Kobbe or Linley Gumm or Phil Crosby or Val Garuts & Filing date: 1950 - 1959 & Cites : Patent GB 460562A or Patent US 2280531A or Patent US 3293474A or Patent US 3558930A or Patent US 3689752A or Patent US 3796910A or None

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