Improvements in or relating to manual telephone exchange systems,申请号GB19470024850-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	Improvements in or relating to manual telephone exchange systems
摘要
申请公布号	GB638213(A)	申请公布日期	1950.06.07
申请号	GB19470024850	申请日期	1947.09.10
申请人	STANDARD TELEPHONES AND CABLES LIMITED	发明人
分类号	H04M3/60	主分类号	H04M3/60
代理机构		代理人
主权项
地址

您可能感兴趣的专利

ANTI-ALLERGIC AGENT

LED illumination device for protecting switching circuit using switching circuit current control

Combining structure of corrugated steel plate

METHOD OF REMOVING ALDEHYDE COMPOUND IN ALCOHOL-CONTAINING SOLUTION AND BREWAGE PURIFIED BY THE METHOD

Apparatus for gripping formed material

AN ARRANGEMENT FOR ATTACHING A SHIP RUDDER TO A RUDDER SHAFT A RUDDER SHAFT A SHIP RUDDER AND A METHOD FOR DISASSEMBLY OF A SHIP RUDDER FROM A RUDDER SHAFT

FLUID EJECTION DEVICE IN THE MOLD OF HOT FORGING EQUIPMENT

APPARATUS AND METHOD FOR EMERGENCY MESSAGE TRANSMISSION APPARATUS AND METHOD FOR TESTING EMERGENCY MESSAGE TRANSMISSION DEVICE

Method of removing water from semiconductor substrate and method of atomic layer deposition using the same

RIGGING TABLE FOR ASSEMBLING TRUSSES AND METHOD OF USE THEREFOR

APPARATUS AND METHOD FOR WOUND TREATMENT EMPLOYING PERIODIC SUB-ATMOSPHERIC PRESSURE

RECHARGEABLE MAGNESIUM ION CELL COMPONENTS AND ASSEMBLY

METHODS AND COMPOUNDS FOR PREPARING CC-1065 ANALOGS

SYSTEMS AND METHODS FOR DETECTION FOR PRIORITIZING AND SCHEDULING PACKETS IN A COMMUNICATION NETWORK

DISPOSABLE PUMP WITH SUCK-BACK MECHANISM

INTELLIGENT COLLECTION AND MANAGEMENT OF FLOW STATISTICS

FOAM DISPENSER WITH LIQUID TUBE PUMP REFILL UNIT

ROAMING SERVICE METHOD IN A MOBILE BROADCASTING SYSTEM, AND SYSTEM THEREOF

A METHOD OF ALLOCATING AN INTERNET PROTOCOL ADDRESS IN A BROADBAND WIRELESS ACCESS SYSTEM