Drilldown: Patents
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Patents > Inventors 
:
Dan Knierim or
Les Larson or
Richard A. Jackson
& Filing date:
October 31, 1977
& Cites :
Patent US 2922074A or
None
& Links :
7A29 or
7A42 or
Sampling
:
Dan Knierim or
Les Larson or
Richard A. Jackson
& Filing date:
October 31, 1977
& Cites :
Patent US 2922074A or
None
& Links :
7A29 or
7A42 or
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