Improvements relating to railway and like signals,申请号GB19290010942-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 relating to railway and like signals
摘要
申请公布号	GB310413(A)	申请公布日期	1930.10.09
申请号	GB19290010942	申请日期	1929.04.09
申请人	PIERRE BOUTHORS	发明人
分类号	B61L29/26	主分类号	B61L29/26
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Security documents

Light indication showing functional status or operational condition through light-transmissible enclosure case

Hologram color filter, production method of the same hologram color filter and space light modulating apparatus using the same hologram color filter

Foreign drive determination and drive letter conflict resolution

Thermally-assisted magnetic recording system with head having resistive heater in write gap

Electrosurgical instrument

Apparatus for retrieving metal debris from a well bore

Catheter stripping apparatus

Plasma display panel

Correlator having enhanced memory for reference and input data

Low resistance high conductivity battery terminal

Method and system for visual analysis of investment strategies

Method and apparatus for creating and ordering customized branded merchandise over a computer network

Ozone generator

Embedded SCR protection device for output and input pad

Methods of oxidizing organic contaminants in aqueous mediums using corona induced reactions

Apparatus for quenching metallic material

Spindle drive having encased spindle nut with break-free moment reducing opposite end collars

Sun visor holder

Braking force control system for vehicle