Drilldown: Patents
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Patents > Inventors :
Dan Knierim or
Les Larson or
Linley Gumm or
Phil Crosby
& Filing date:
1980 - 1989
& Grant date:
1989
& Cites :
Patent GB 460562A or
Patent US 3293474A or
Patent US 3689752A or
Patent US 4150420A or
Patent US 4255003A or
None
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Showing below up to 3 results in range #1 to #3.