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AUDIO SIGNAL REPRODUCING APPARATUS

10/96,621 | U.S. Patent Application

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Location ELECTRONIC
Filed March 13, 2002
Examiner XU MEI
Class 381
Art Group 2644
Patent No. 6,975,732
Case Type Utility - 381/074000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 08/747,910 Patented
Parent 07/600,818 Patented
Child 90/7,909 Pending
Child 11/158,880 Patented
Child P278209/89
Last Updated: 4 years, 9 months ago
Date # Transaction