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-traffic-controlling apparatus
摘要
申请公布号
US1773515(A)
申请公布日期
1930.08.19
申请号
US19270166408
申请日期
1927.02.07
申请人
THE UNION SWITCH & SIGNAL COMPANY
发明人
BUCHANAN CHARLES C.
分类号
B61L3/22
主分类号
B61L3/22
代理机构
代理人
主权项
地址
您可能感兴趣的专利
ISONITRIL-RADIONUCLIDKOMPLEKSER OG DERES ANVENDELSE TIL MAERKNINGS-OG AFBILDNINGSMIDLER
FLASH LIGHT DEVICE OR SIMILAR ARTICLE
HIGH FREQUENCY HEATER
MIXER FOR DRILL CUTTINGS
WHEELS
VARIABLE LENGTH STRUT ASSEMBLY
POSITION &/ ATTITUDE
ADJUSTABLE WRENCH
PERPETUAL MOTION
COMPONENT FOR PACKAGING ARTICLE
ELECTROMAGNETIC ACTUATORS
ELECTROLYTIC CELL AND GASKET
ELECTROMAGNETIC MACHINE
SENSING REMOVAL OF STACKED WORKPIECES
STITCH ADJUSTMENT DEVICE
SUPPORTING DEVICE REQUIRING CONTROLLED DISPLACEMENT
HEAT EXCHANGE ELEMENT
SELF-LIFTING SPADE
WATER-SOLUBLE DYES OF THE 1-AMINO-2-PHENOXY-4-PHENYLAMINO ANTHRAQUINONE SERIES; PROCESS FOR THEIR PREPARATION AND THEIR APPLICATION
ROLLERS