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SELF DIAGNOSTIC SPEAKER LOAD IMPEDANCE TESTING SYSTEM

14/736,119 | U.S. Patent Application

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Location ELECTRONIC
Filed June 10, 2015
Examiner ANDREW L SNIEZEK
Class 381
Art Group 2688
Patent No. 9,838,813
Case Type Utility - 381/059000
Status Patented Case
Parent 62/12,300 Expired
Last Updated: 4 years, 11 months ago
Date # Transaction