Circuit arrangement for the routine testing of the interface between transmission groups and the switching network of a PCM telecommunications exchange.,申请号EP19900105564-传众专利搜索

首页产品黄页商标征信

会员服务注册登录

法人/股东/高管

发明名称	Circuit arrangement for the routine testing of the interface between transmission groups and the switching network of a PCM telecommunications exchange.
摘要
申请公布号	EP0448734(B1)	申请公布日期	1994.12.14
申请号	EP19900105564	申请日期	1990.03.23
申请人	SIEMENS AKTIENGESELLSCHAFT	发明人	NAGLER, WERNER,DIPL.-ING.;KRUMENACKER, RUDOLF, DIPL.-ING.
分类号	H04J3/14;H04M3/24;H04Q11/04;(IPC1-7):H04M3/24	主分类号	H04J3/14
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Unattended meet-me-conference controlled by a telephone terminal

Data storage device having different storage densities for differing types of data

Blown film die enclosure

Semiconductor laser

Apparatus for frosting drinking glasses

Node for loop-type optical LAN and a loop-type optical LAN using the same

Fast response matched filter receiver with decision feedback equalizer

Preparation of low-viscosity, isocyanurate and urethane group-containing polyisocyanate mixtures

Optical device with an optical coupler for effecting light branching and/or combining and an optical amplifier

Magnetic materials for security applications

Thermoplastic polyamide with reduced flammability

Deformable, abrasion-resistant silicone coating and method of producing the same

Polyurethane block copolymer

Reactor refueling mechanism

Wiring board having laminated wiring patterns

Depolymerization method for resource recovery from polymeric wastes

Method of detecting injured nuclear DNA

Water-based liquid for treating glass fiber cord for reinforcement of rubber, glass fiber cord for reinforcing rubber, and reinforced rubber product

Method for joining parts of Ni-Ti alloys with different metals