Drilldown: Patents
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Patents > Inventors :
Dan Knierim or
Gene Andrews or
John Addis
& Grant date:
1980 - 1989
& Cites :
Patent US 3215948A or
Patent US 3293474A or
Patent US 3689752A or
Patent US 4048577A or
Patent US 4255003A or
None
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Showing below up to 19 results in range #1 to #19.