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EMBEDDING DIGITAL WATERMARKS IN SPOT COLORS

09/963,344 | U.S. Patent Application

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Location ELECTRONIC
Filed Sept. 25, 2001
Examiner TOM Y LU
Class 382
Art Group 2621
Patent No. 6,993,149
Case Type Utility - 382/100000
Status Patented Case
Child 10/74,677 Patented
Last Updated: 4 years, 3 months ago
Date # Transaction