Drilldown: Patents
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Patents > Inventors :
Bozidar Janko or
Dan Knierim or
George Frye
& Grant date:
1970 - 1979
& Cites :
Patent US 3293474A or
Patent US 3629731A or
Patent US 4146844A or
Patent US 4322688A or
None
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Showing below up to 12 results in range #1 to #12.