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DOORBELL COMMUNICATION SYSTEMS AND METHODS

14/589,830 | U.S. Patent Application

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Location ELECTRONIC
Filed Jan. 5, 2015
Examiner JARED T WALKER
Class 348
Art Group 2486
Patent No. 9,060,104
Case Type Utility - 348/143000
Status Patented Case
Parent 14/502,601 Patented
Parent 14/492,809 Patented
Parent 14/275,811 Patented
Parent 14/142,839 Patented
Parent 14/99,888 Patented
Parent 14/98,772 Patented
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Last Updated: 3 years, 9 months ago
Date # Transaction