Drilldown: Patents
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Patents > Inventors :
Dan Knierim or
George Frye or
John Kobbe
& Filing date:
1953
& Grant date:
1950 - 1959
& Cites :
Patent US 3293473A or
Patent US 3293474A or
Patent US 3312850A 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.