Improvements in or relating to automatic or semi-automatic telephone exchange systems,申请号GB19320019795-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 automatic or semi-automatic telephone exchange systems
摘要
申请公布号	GB401811(A)	申请公布日期	1933.11.23
申请号	GB19320019795	申请日期	1932.07.13
申请人	THE GENERAL ELECTRIC COMPANY LIMITED;JOHN EDWARD COLLYER	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

HOME EXCHANGER FOR VENTILATOR

METHOD OF PROVIDING VIDEO STREAMIN SERVICE HAVING HIGHER TIMES OF RATE

METHOD AND SYSTEM FOR PROVIDING MULTIMEDIA RING BACK TONE SERVICE

APPARATUS AND METHOD FOR CONTROLLING POWER GAIN OF BTS

Cells module cooling apparatus of the sun rays for a electric generator

Method for sending a mass of mail using of computer network and system

PLASMA DISPLAY DEVICE

PACKET SCHEDULING DEVICE AND PACKET SCHEDULING METHOD

Air Conditioner

Air bag device for vehicles

Direct hydrocarbon reforming in protonic ceramic fuel cells by electrolyte steam permeation

Improved osteotome

Mixed-metal oxides

A method and device for generating an electrical signal with a wide band arbitrary waveform

Method and apparatus for compressing and decompressing data, and computer product

Moulded trim panels

An engine belt drive system

ENANTIOMERICALLY SELECTIVE CYCLOPROPANATION