Drilldown: Patents
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Patents > Inventors :
Phil Crosby or
Richard A. Jackson
& Grant date:
December 1969
& Cites :
Patent US 3214516A or
Patent US 3293474A or
Patent US 3325673A or
Patent US 3358159A or
Patent US 3426237A or
None
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Showing below up to 1 result in range #1 to #1.