Drilldown: Patents
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Patents > Company
:
Audio Precision
or
Jackson Richard A, Symes Peter D, Bannister Richard S, Grancey Thomas A, Frasier Richard A, John Abt, Barnett Ronnie D, Blecksmith James E, Windrem Kevin D, Olmstead Neil R
or
Zeelan Technology, Inc.
& Filing date:
September 1990
& Grant date:
1993
& Cites
:
Patent US 3293474A
or
Patent US 3531675A
or
Patent US 3753170A
or
Patent US 4146844A
or
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