Improvements in methods of protecting telecommunication lines against external disturbing influences,申请号GB19290030172-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 methods of protecting telecommunication lines against external disturbing influences
摘要
申请公布号	GB346322(A)	申请公布日期	1931.04.07
申请号	GB19290030172	申请日期	1929.10.04
申请人	LIGNES TELEGRAPHIQUES ET TELEPHONIQUES	发明人
分类号	H04B3/30	主分类号	H04B3/30
代理机构		代理人
主权项
地址

您可能感兴趣的专利

COMPOSITE MOLDING AND METHOD FOR PRODUCING THE SAME

IMAGE PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, INFORMATION PROCESSING PROGRAM

IMAGE FORMING APPARATUS, SERVER, ELECTRONIC CONFERENCE SYSTEM, AND CONFERENCE MATERIAL PREPARATION METHOD AND PROGRAM

AMPLIFICATION CIRCUIT AND AMPLIFICATION ELEMENT

A/D CONVERTER AND A/D CONVERSION METHOD

COMPOUND WITH ELECTRON INJECTION AND/OR ELECTRON TRANSPORT CAPABILITIES, ORGANIC LIGHT-EMITTING ELEMENT, AND FLAT PANEL DISPLAY DEVICE

ELECTRIC WIRE WITH TERMINAL, AND CRIMP TERMINAL

CONNECTOR COVER

KEYBOARD WHOSE NEAR SIDE BECOMES HIGHER

AUTOMATIC TRANSACTION DEVICE AND POWER SAVING RELEASE METHOD FOR AUTOMATIC TRANSACTION DEVICE

ROAD TRAFFIC INFORMATION COLLECTION SYSTEM, ROAD TRAFFIC INFORMATION COLLECTION DEVICE, AND ON-VEHICLE DEVICE

COOKING AUXILIARY DEVICE, COOKING AUXILIARY METHOD AND PROGRAM

LENS BARREL AND IMAGING APPARATUS

IMAGE PROCESSOR AND IMAGE PROCESSING METHOD

INFORMATION RETRIEVAL DEVICE

RIN (BUDDHIST BELL)

OPENING/CLOSING DEVICE FOR OPENING/CLOSING LID AND ELECTRONIC APPARATUS

MULTIBEAM SCANNING OPTICAL DEVICE

LUMINANCE CONTROL METHOD FOR LIQUID CRYSTAL DISPLAY DEVICE