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
Apparatus for the control of highway crossing signals
摘要
申请公布号
US2328180(A)
申请公布日期
1943.08.31
申请号
US19420448334
申请日期
1942.06.25
申请人
THE UNION SWITCH & SIGNAL COMPANY
发明人
VANTASSEL HARRY C.
分类号
B61L29/28
主分类号
B61L29/28
代理机构
代理人
主权项
地址
您可能感兴趣的专利
METHOD FOR SYNTHESIZING ULTRAHIGH-PURITY SILICON CARBIDE
CONCURRENT ASYNCHRONOUS USB DATA STREAM DESTUFFER WITH VARIABLE WIDTH BIT-WISE MEMORY CONTROLLER
SECURE ONLINE SERVICE PROVIDER COMMUNICATION
COMMUNICATION SYSTEM, COMMUNICATION APPARATUS, COMMUNICATION PROGRAM, AND COMPUTER-READABLE STORAGE MEDIUM STORED WITH THE COMMUNICATION PROGRAM
METHOD FOR PRODUCING EPITOMERS AND THEIR USES ON CARRIER MICROORGANISMS
Ambient light script command encoding
WIRELESS VEHICLE TRAILER MONITORING AND CONTROL SYSTEM
Tongue-Holding Device
METHOD FOR MANUFACTURING ORGANIC SEMICONDUCTOR ELEMENT
Photosynthetic hydrogen production
CASTING DEVICE, AND SOLUTION CASTING METHOD AND APPARATUS
RANDOM NUMBER GENERATOR
ERECTABLE CANOPY WITH REINFORCED ROOF STRUCTURE
METHOD FOR DYNAMIC MANAGEMENT OF A DATABASE
PRECISION CONTROL SYSTEMS FOR TISSUE VISUALIZATION AND MANIPULATION ASSEMBLIES
METHOD OF SETTING WRITE STRATEGY PARAMETERS, AND RECORDING AND REPRODUCING APPARATUS FOR PERFORMING THE METHOD
LIGHTING
Electronic Device, Loop Heat Pipe and Cooling Device
METHOD AND DEVICE FOR THE ALIGNMENT OF A SHEET
System for controlling a multimachine caravan