Drilldown: Patents
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Patents > Inventors 
:
Dan Knierim or
John Addis or
Phil Crosby or
Richard A. Jackson
& Company :
Audio Precision or
Richard Cabot or
Tektronix Inc, Sony-Tektronix Inc or
Zeelan Technology, Inc.
& Filing date:
May 1988
& Cites :
Patent US 2922074A or
Patent US 3312850A or
Patent US 3689752A or
Patent US 4048577A or
Patent US 4150420A or
Other or
None
:
Dan Knierim or
John Addis or
Phil Crosby or
Richard A. Jackson
& Company :
Audio Precision or
Richard Cabot or
Tektronix Inc, Sony-Tektronix Inc or
Zeelan Technology, Inc.
& Filing date:
May 1988
& Cites :
Patent US 2922074A or
Patent US 3312850A or
Patent US 3689752A or
Patent US 4048577A or
Patent US 4150420A or
Other or
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