Drilldown: Patents
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Patents > Inventors :
George Frye or
John Addis or
Phil Crosby
& Filing date:
1980 - 1989
& Cites :
... or
Patent GB 460562A or
Patent US 2280531A or
Patent US 4146844A or
Other or
None
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Showing below up to 20 results in range #1 to #20.