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STEGANOGRAPHIC TECHNIQUES FOR SECURELY DELIVERING ELECTRONIC DIGITAL RIGHTS MANAGEMENT CONTROL INFORMATION OVER INSECURE COMMUNICATION CHANNELS

09/247,328 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)
Filed Feb. 10, 1999
Examiner BERNARR E GREGORY
Class 380
Art Group 3662
Patent No. 6,240,185
Case Type Utility - 380/232000
Status Patented Case
Parent 08/689,606 Patented
Child 09/790,566 Patented
Child 10/189,231 Patented
Child 10/618,427 Patented
Child 11/978,947 Abandoned
Child 12/259,243 Abandoned
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Last Updated: 1 year, 9 months ago
Date # Transaction