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OPTICAL PICKUP COMPATIBLE WITH A DIGITAL VERSATILE DISK AND A RECORDABLE COMPACT DISK USING A HOLOGRAPHIC RING LENS

10/461,430 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)
Filed June 16, 2003
Examiner MUHAMMAD N EDUN
Class 369
Art Group 2655
Patent No. 6,788,636
Case Type Utility - 369/112080
Status Patented Case
Parent 09/930,964 Patented
Parent 09/419,792 Patented
Parent 09/49,988 Patented
Child 97-11297
Last Updated: 5 years ago
Date # Transaction