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
Railway light signal
摘要
申请公布号
US1940916(A)
申请公布日期
1933.12.26
申请号
US19320599633
申请日期
1932.03.18
申请人
THE UNION SWITCH & SIGNAL COMPANY
发明人
O'HAGAN BERNARD E.
分类号
B61L5/18
主分类号
B61L5/18
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Vector instruction for presenting complex conjugates of respective complex numbers
Systems and methods for location-based application installation
Bezel pixel layer in multi-panel display
Mirroring graphics content to an external display
Verifying a record as part of an operation to modify the record
Managing memory and storage space for a data operation
Mapping between program states and data patterns
Modular mass storage system
Storage controller configured to transfer data stored by first storage device to second storage device during a period of inactivity based at least on write speeds
Liquid crystal display device
Interactive whiteboard for private use
Optical touch screen using total internal reflection
System and method for managing energy consumption in a compute environment
Portable computing system
Flexible display device
DC-to-DC converter
Surrounding environment recognition device, autonomous mobile system using same, and surrounding environment recognition method
Hierarchical model communication and control in a managed electrical system
Integral assembly of a hairspring and a collet
Film and image heating device using film
