Drilldown: Patents
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Patents > Inventors :
Bruce Hofer or
Dan Knierim or
John Addis
& Grant date:
1990
& Cites :
Patent US 2280531A or
Patent US 3214516A or
Patent US 3629731A or
Patent US 3740539A or
Patent US 4255003A or
None
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Showing below up to 2 results in range #1 to #2.