Drilldown: Patents
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Patents > Inventors :
Dan Knierim or
George Frye or
Phil Crosby
& Grant date:
1980 - 1989
& Cites :
Patent US 2883619A or
Patent US 3426237A or
Patent US 3558930A or
Patent US 3740539A or
None
Use the filters below to narrow your results.
Showing below up to 11 results in range #1 to #11.