Drilldown: Patents
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Patents > Inventors:
David D. Stubbs
& Filing date:
January 1987
& Grant date:
September 19, 1989
& Cites :
Patent US 2280531A or
Patent US 3293474A or
Patent US 3531675A or
Patent US 3725792A or
Other or
None
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Showing below up to 1 result in range #1 to #1.