Method for cyclic monitoring of connection lines in telephone systems,申请号CH19800002076-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	Method for cyclic monitoring of connection lines in telephone systems
摘要
申请公布号	CH653194(A5)	申请公布日期	1985.12.13
申请号	CH19800002076	申请日期	1980.03.17
申请人	SIEMENS AKTIENGESELLSCHAFT BERLIN UND MUENCHEN	发明人	CREVITS, LUC;LYBEER, ROGER
分类号	H04M7/14;H04Q3/545;(IPC1-7):H04M3/42	主分类号	H04M7/14
代理机构		代理人
主权项
地址

您可能感兴趣的专利

DEVICE FOR COMPUTING CURRENT ESTIMATION OF MEAN VALUE

TIME INTERVAL METER

DEVICE FOR DETERMINING LIQUID SATURATION PRESSURE BY ULTRASONIC METHOD

FAULT LOCATING DEVICE

SURFACE ACOUSTIC WAVE FILTER

QUICK-ACTING LOAD SUPPLY SWITCH

DEVICE FOR PREVENTING ABNORMAL OPERATING CONDITIONS OF THREE-PHASE INDUCTION ELECTRIC MOTOR SUPPLIED FROM SOURCE

GAS FLOW PI-CONTROLLER

METHOD OF DETERMINING SPLENINE ACTIVITY

METHOD OF DETERMINING POROSITY OF FILM MATERIALS

MACHINE FOR TESTING MATERIALS FOR IMPACT FATIGUE

FLUENT MATERIAL METERING DEVICE

BIMETALLIC HEAT-EXCHANGING PIPE AND METHOD OF MANUFACTURING SAME

AIR HYMIDIFYING DEVICE

DEVICE FOR MONITORING SLAGGING OF STEAM GENERATOR HEATING SURFACE

ELASTIC COUPLING