Drilldown: Patents
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Patents > Inventors :
Dan Knierim or
John Addis
& Grant date:
1980 - 1989
& Cites :
... or
Patent US 2922074A or
Patent US 3426236A or
Patent US 3426237A or
Other or
None
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Showing below up to 15 results in range #1 to #15.