Drilldown: Patents

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Patents > Inventors : Bruce Hofer or Conrad Odenthal or Dan Knierim or Richard A. Jackson or Richard Cabot & Filing date: April 1977 & Grant date: 1979 & Cites : Patent US 3214631A or Patent US 3331983A or Patent US 3558930A or Patent US 3725792A or Patent US 4146844A or Patent US 4150420A or None

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