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TWO-WAY AUDIO-VIDEO COMMUNICATION METHOD FOR RECEIVING PERSON AT ENTRANCE

11/618,618 | U.S. Patent Application

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Location ELECTRONIC
Filed Dec. 29, 2006
Examiner STELLA L WOO
Class 348
Art Group 2614
Patent No. 8,144,183
Case Type Utility - 348/014060
Status Patented Case
Parent 10/682,185 Patented
Parent 60/418,384 Expired
Last Updated: 3 years, 4 months ago
Date # Transaction