Drilldown: Patents
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Patents > Inventors :
Dan Knierim or
Hiro Moriyasu or
Phil Crosby
& Filing date:
January 9, 1989
& Grant date:
April 1990
& Cites :
Patent US 3214516A or
Patent US 4255003A or
None
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Showing below up to 1 result in range #1 to #1.