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Reexamination of Patent No. 5,640,458, AUDIO SIGNAL REPRODUCING APPARATUS

90/8,043 | U.S. Patent Application

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Location ELECTRONIC
Filed May 22, 2006
Examiner JOSEPH R POKRZYWA
Class 381
Art Group 3992
Case Type Re-Examination - 381/098000
Status Reexamination Certificate Issued
Original Case 07/600,818 Patented
Child 1-278209
Last Updated: 2 years, 7 months ago
Date # Transaction