Drilldown: Patents
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Patents > Inventors:
Dan Knierim
& Filing date:
1990 - 1999
& Grant date:
1991
& Cites :
Patent US 2922074A or
Patent US 3214516A or
Patent US 3293474A or
Patent US 4255003A or
Other or
None
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Showing below up to 1 result in range #1 to #1.