首页
产品
黄页
商标
征信
会员服务
注册
登录
全部
|
企业名
|
法人/股东/高管
|
品牌/产品
|
地址
|
经营范围
发明名称
Switch and signal control system for railroads
摘要
申请公布号
US2265351(A)
申请公布日期
1941.12.09
申请号
US19400330534
申请日期
1940.04.19
申请人
GENERAL RAILWAY SIGNAL COMPANY
发明人
COLEY NELSON B.
分类号
B61L19/06
主分类号
B61L19/06
代理机构
代理人
主权项
地址
您可能感兴趣的专利
GAS SPRAYING SWITCH
VINYL CHLORIDE RESIN COMPOSITION
METHOD OF PRODUCING TUNNEL BARRIER FOR SUERCONDUCTIVE JOSEPHSON JUNCTION ELEMENT
Continuous production of adhesively secured cartons
GAS BURNER
MICROBIOLOGICAL OXIDATIONS
PROCESS FOR PRODUCING A BASE PRODUCT FOR THICKENED SAUCES AND SOUPS WHICH DISPERSES IN HOT WATER WITHOUT FORMING LUMPS
RAIL MAINTENANCE MACHINE
ANGULAR VELOCITY SENSOR
FACILITIES CONTROL METHOD
KNEADING MACHINE
TREFELLINGSANORDNING
Apparatus for delivering a signal on a telephone line
WINCHES
PROCESS FOR THE MANUFACTURE OF 3-ACYLAZOPROPIONIC ACID ESTERS AND ISOMERS THEREOF
PROCESS FOR PREPARING N,N,N',N'-TETRAACETYLETHYLENE DIAMINE
PROCESS FOR THE BENEFICIATION OF CARBONACEOUS MATTER EMPLOYING HIGH SHEAR CONDITIONING
PROCESS FOR THE PURIFICATION OF EXHAUST GASES
IMPROVEMENTS RELATING TO HEAT EXCHANGERS
CONTINUOUS TOWEL CABINETS
