Drilldown: Patents
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Patents > Inventors:
Phil Crosby
& Filing date:
July 25, 1989
& Grant date:
March 1990
& Cites :
Patent US 2280531A or
Patent US 3011129A or
Patent US 3293474A or
Patent US 3629731A or
Patent US 4255003A or
None
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Showing below up to 1 result in range #1 to #1.