Drilldown: Patents
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Patents > Inventors :
Dan Knierim or
George Frye or
Hiro Moriyasu or
John Addis or
John Kobbe or
Les Larson or
Phil Crosby
& Filing date:
1970 - 1979
& Cites :
Patent US 3293473A or
Patent US 3413513A or
Patent US 3689752A or
Patent US 3753170A or
Patent US 4048577A or
Patent US 4255003A
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