首页
产品
黄页
商标
征信
会员服务
注册
登录
全部
|
企业名
|
法人/股东/高管
|
品牌/产品
|
地址
|
经营范围
发明名称
Improvements in connecting devices for telephone exchanges
摘要
申请公布号
GB622205(A)
申请公布日期
1949.04.28
申请号
GB19450028640
申请日期
1945.10.29
申请人
TELEFONAKTIEBOLAGET L. M. ERICSSON
发明人
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Optical fiber and optical transmission path
WDM self-healing optical ring network
2-SULFAMOYLBENZOIC ACID DERIVATIVES
MOBILITY DEVICE ASSISTANT
SUBSTRATE CONNECTOR
Method and system for screening lubricating oil compositions
UNIT-CONSTRUCTION ASSEMBLY
GAMING MACHINE WITH REPEATED AWARD FEATURE
PUSH-BUTTON WITH INTEGRATED OR ADJACENT MOVEABLE OUTCOME INDICATOR
BEDECKTER SILIZIUMFILM UND VERFAHREN ZU DESSEN HERSTELLUNG
SELF-CONTAINED RADIO APPARATUS FOR TRANSMISSION OF DATA
BI-CAST BLADE RING FOR MULTI-ALLOY TURBINE ROTOR
PROCESS FOR PRODUCING TRANSPARENT CONDUCTIVE FILM AND PROCESS FOR PRODUCING TANDEM THIN-FILM PHOTOELECTRIC CONVERTER
DISPOSABLE DIAPER
Intermediate transfer member having a compressible layer and an external heating
PERFLUOROALKYL (METH)ACRYLATE POLYMERS AND THEIR USE AS SURFACTANT AND SUBSTRATE TREATING REAGENTS
RFID TAG COMMUNICATION METHOD AND RFID TAG COMMUNICATION SYSTEM
Sleeve for protection and strengthening of head-to-head welds of plastic pipes
VETERINARY PHARMACEUTICAL COMPOSITIONS COMPRISING A PROTON PUMP INHIBITOR AND A BUFFERING AGENT AND METHODS OF USING SAME
Touch detecting device for vehicle, comprises paint with integrated piezo-electric function
