Drilldown: Patents

Patents > Inventors : John Addis or Raymond Hayes or Thomas S. Buzak & Company: Audio Precision & Filing date: 1980 - 1989 & Grant date: February 1988 & Cites : Patent GB 460562A or Patent US 3629731A or Patent US 3725792A or None & Links : 465 or 7A15 or 7A24 or 7T11 or None

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