Switch and signal control system for railroads,申请号US19570647253-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	Switch and signal control system for railroads
摘要
申请公布号	US2967232(A)	申请公布日期	1961.01.03
申请号	US19570647253	申请日期	1957.03.20
申请人	GENERAL RAILWAY SIGNAL COMPANY	发明人	FERM GLENN O.;SMITH WILLIS R.;ALBRIGHTON REGINALD F.
分类号	B61L7/08;B61L19/06	主分类号	B61L7/08
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Receiver with image rejection calibration at an undesired picture carrier and method therefor

High frequency power detector circuit and radio communication device

Method and apparatus for revoking a talk burst

Gloss imparting method, image forming method, fixing apparatus and image forming apparatus

Developer system and method for providing variable flow rate of developer in an electrographic printer

Intelligent electronic device with broad-range high accuracy

Method and device for automatic route registration

Image forming apparatus

Optical receiver using beam combining and system using the same

Resin composition for optical waveguide, and optical waveguide produced by employing the resin composition

Photonic band gap router

Red eye false positive filtering using face location and orientation

Telephone interface circuit

Method of managing a peering database in a telecommunications network

Managing audio in a multi-source audio environment

Verification of path integrity in optical switch network

Optical waveguide and bi-directional optical transceiver

Setting an uplink transmission rate limit for mobile terminals transmitting over a high speed downlink shared channel

Gas discharge laser chamber