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