Drilldown: Patents
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Patents > Inventors 
:
Dan Knierim or
Gene Andrews or
John Kobbe
& Company :
Audio Precision or
Hiro Moriyasu or
Tektronix or
None
& Filing date:
July 24, 1969
& Grant date:
1971
& Cites :
Patent US 2922074A or
Patent US 3293474A or
Patent US 3358159A or
Patent US 3413513A or
Patent US 3629731A or
Patent US 4322688A or
None
:
Dan Knierim or
Gene Andrews or
John Kobbe
& Company :
Audio Precision or
Hiro Moriyasu or
Tektronix or
None
& Filing date:
July 24, 1969
& Grant date:
1971
& Cites :
Patent US 2922074A or
Patent US 3293474A or
Patent US 3358159A or
Patent US 3413513A or
Patent US 3629731A or
Patent US 4322688A or
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