Drilldown: Patents
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Patents > Inventors:
Dan Knierim
& Filing date:
1980 - 1989
& Grant date:
1986
& Cites :
Patent US 3312850A or
Patent US 3510690A or
Patent US 3558930A or
Patent US 3689752A or
Patent US 4048577A or
None
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Showing below up to 2 results in range #1 to #2.