H04Q 1/28

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9986310 Multi-stage sensing/control/identification device having protected communication and remote powerSep 02, 16May 29, 18United Technologies Corporation
9826477 Wireless network deviceDec 29, 16Nov 21, 17HON HAI PRECISION INDUSTRY CO., LTD., NANNING FUGUI PRECISION INDUSTRIAL CO., LTD.,
9521471 Line accommodating apparatus and temperature control methodMay 24, 10Dec 13, 16NEC CORPORATION
5068580 Electrical beam switchMay 30, 89Nov 26, 91STOVOKOR TECHNOLOGY LLC
4700381 Circuit arrangement for centrally-controlled telecommunications exchange systems, comprising central control units and an alternate circuit arrangementMay 16, 85Oct 13, 87SIEMENS AKTIENGESELLSCHAFT
4520234 Remote cable switching systemApr 11, 83May 28, 85REMOTE SWITCH SYSTEMS, INC.
4314106 Line circuitApr 21, 80Feb 02, 82U.S. PHILIPS CORPORATION
4275277 Subscriber line interface circuit for a telephone lineJun 22, 79Jun 23, 81PHILIPS COMMUNICATION D'ENTREPRISE, U.S. PHILIPS CORPORATION,
4243842 Telephone line circuitApr 24, 79Jan 06, 81NORTEL NETWORKS LIMITED
4241239 Fluxbucking line transformer with electronic equivalent line terminating impedanceFeb 24, 78Dec 23, 80ALCATEL NETWORK SYSTEMS, INC.