Light signal system for railroads,申请号US19300476709-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	Light signal system for railroads
摘要
申请公布号	US1824186(A)	申请公布日期	1931.09.22
申请号	US19300476709	申请日期	1930.08.20
申请人	GENERAL RAILWAY SIGNAL COMPANY	发明人	WILLING JOSEPH E.
分类号	B61L23/16	主分类号	B61L23/16
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Method and structure for producing Z-axis interconnection assembly of printed wiring board elements

Pharmaceutical tablet formulation containing gabapentin with improved physical and chemical characteristics and method of making the same

Sputtering alloy films using a sintered metal composite target

Headbox and process for the metered addition of a fluid medium into a suspension stream of a headbox

Method of wasteless punching of adhesive punched items

Tissue fixation device and method

Method and apparatus for fluid jet formation

Lifting platform with energy recovery

Attenuation splice, system and method therefor using estimation algorithm and closed loop intelligent control

Method of epidural surgery

Bearing and method for manufacturing the same

Wireless hand-supportable internet-enabled access terminal for enabling information-related transactions over the internet

GRUPPO PINZANTE PERFEZIONATO PER SGRETOLARE IN PARTICOLARE RESIDUI DIMATERIALE EDILIZIO

Bärkonstruktion för användning på cyklar och dylikt

BICCHIERI MONOUSO PERSONALI

ELECTRIC BRAKE ACTUATOR

PROPYLENE POLYMER COMPOSITION, FILM THEREOF, AND MULTILAYERED LAMINATE

INFORMATION RETRIEVAL/TRANSMISSION METHOD AND RECORDING MEDIUM RECORDING PROGRAM INSTRUCTING PROCEDURE FOR INFORMATION RETRIEVAL/TRANSMISSION

PROCESS FOR PRODUCTION OF HIGH-PURITY BIS-尾-HYDROXYETHYL TEREPHTHALATE

CHEMICALLY-MODIFIED SUPPORTS AND SUPPORTED CATALYST SYSTEMS PREPARED THEREFROM