Drilldown: Patents
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Patents > Inventors :
John Addis or
John Kobbe or
Phil Crosby
& Grant date:
1980 - 1989
& Cites :
Patent GB 460562A or
Patent US 4146844A or
Patent US 4150420A or
Patent US 4255003A or
None
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Showing below up to 16 results in range #1 to #16.