H04M 1/08

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Showing 1 to 20 of 37 results

Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9893738 Analog-to-digital converter and communication device including the sameMar 27, 17Feb 13, 18SAMSUNG ELECTRONICS CO., LTD.
8891755 Telephone set and method of controlling off-hook/on-hook state of the telephone setDec 23, 13Nov 18, 14HUAWEI TECHNOLOGIES CO., LTD.
8781108 Adaptive ringtone detectorSep 12, 12Jul 15, 14GN NETCOM A/S
8600044 Supporting device and telephone deviceAug 28, 12Dec 03, 13FU TAI HUA INDUSTRY (SHENZHEN) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.,
8437741 Intelligent network access controller and methodDec 19, 08May 07, 13Tecore, Inc.
6728537 GPRS mobile paging methodJan 11, 00Apr 27, 04GOOGLE INC.
RE34200 Coin fraud preventing unit and modular configurations for pay telephone stationsMay 08, 91Mar 23, 93International Teleservice, Inc., TECHNOLOGY SERVICE GROUP, INC.,
5007079 Coin fraud prevention unit and modular configurations for pay telephone stationsOct 20, 89Apr 09, 91QUORTECH GLOBAL SOLUTIONS, INC.
4937859 Telephone handset for table and wall operationMar 23, 89Jun 26, 90SIEMENS AKTIENGESELLSCHAFT
4918724 Coin fraud preventing unit and modular configurations for pay telephone stationsSep 15, 89Apr 17, 90QUORTECH GLOBAL SOLUTIONS, INC.
4803723 TelephoneOct 16, 87Feb 07, 89STC PLC
4790008 Telephone line switch apparatusApr 18, 86Dec 06, 88AMERICAN TELEPHONE AND TELEGRAPH COMPANY, AT&T Information Systems Inc.,
4771453 Telephone subscriber station comprising an actuating device which actuates a cradle switchJun 25, 87Sep 13, 88SIEMENS AKTIENGESELLSCHAFT
4747134 Pay telephone hook switch assemblyJun 04, 87May 24, 88Phillips & Brooks/Gladwin, Inc., Phillips & Brooks, Inc.,
4741034 Receptacle for telephone handsetAug 19, 86Apr 26, 88MOTOROLA, INC.
4727573 Switch with plural rotorsJan 16, 86Feb 23, 88Hosiden Electronics Co., Ltd.
4710596 Telephone unit adapted for vertical and horizontal mountingDec 31, 84Dec 01, 87RCA LICENSING CORPORATION, TWO INDEPENDENCE WAY, PRINCETON, NJ 08540, A CORP. OF DE
4710954 Telephone set line switchOct 03, 85Dec 01, 87AMERICAN TELEPHONE AND TELEGRAPH COMPANY, AT&T Information Systems Inc.,
4709389 Telephone hook switch with elastomeric contact memberMar 18, 85Nov 24, 87NORTEL NETWORKS LIMITED
4696033 One-piece telephone hook switch operating mechanismJan 23, 85Sep 22, 87BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

Showing 1 to 20 of 37 results