Drilldown: Patents
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Patents > Inventors :
Bruce J. Penney or
Dan Knierim or
George Frye or
Phil Crosby or
Thomas S. Buzak
& Filing date:
1988
& Grant date:
1990
& Cites :
... or
Patent US 2280531A or
Patent US 2883619A or
Patent US 3293473A or
Patent US 3293474A or
Patent US 3629731A or
Patent US 3982150A or
Patent US 4146844A or
Patent US 4150420A or
None
& Links :
465 or
475 or
5A45 or
7A24
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