Drilldown: Patents
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Patents > Inventors :
Dan Knierim or
John Addis or
Phil Crosby
& Grant date:
1980 - 1989
& Cites :
... or
Patent US 2883619A or
Patent US 2922074A or
Patent US 3426237A or
Patent US 4146844A or
None
Use the filters below to narrow your results.
Showing below up to 20 results in range #1 to #20.