Drilldown: Patents

Patents > Inventors : Bruce Hofer or Bruce J. Penney or Cornelis Teunis Veenendaal or Dan Knierim or Richard A. Jackson & Filing date: 1977 & Grant date: June 1980 & Cites : Patent US 2280531A or Patent US 2883619A or Patent US 3510690A or Patent US 3753170A or Patent US 3796910A or Patent US 4150420A or None

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