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DEVICE INDEPENDENT TEXT CAPTIONED TELEPHONE SERVICE

13/790,420 | U.S. Patent Application

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Location ELECTRONIC
Filed March 8, 2013
Examiner STELLA L WOO
Class 379
Art Group 2656
Patent No. 8,917,821
Case Type Utility - 379/052000
Last Updated: 1 year, 11 months ago
Date # Transaction