Drilldown: Patents
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Patents > Inventors :
Dan Knierim or
George Frye or
John Kobbe
& Filing date:
1960 - 1969
& Cites :
Patent US 2280531A or
Patent US 3011129A or
Patent US 3629731A or
Patent US 4150420A or
None
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Showing below up to 16 results in range #1 to #16.