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

09/419,792 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)

Filed Oct. 18, 1999

Examiner MUHAMMAD N EDUN

Class 375

Art Group 2651

Patent No. 6,304,540

Case Type Utility - 375/240000

Status Patented Case

Parent 09/49,988 Patented

Child 09/930,963 Patented

Child 09/930,964 Patented

Child 10/461,430 Patented

Child 11/849,609 Patented

Last Updated: 2 years, 4 months ago

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

09/419,792 | U.S. Patent Application

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