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
Derrick
摘要
申请公布号
US2225561(A)
申请公布日期
1940.12.17
申请号
US19380218527
申请日期
1938.07.11
申请人
LEE C. MOORE & COMPANY, INC.
发明人
HENRY CHARLES L.
分类号
E04H12/18;E21B15/00
主分类号
E04H12/18
代理机构
代理人
主权项
地址
您可能感兴趣的专利
METHOD FOR DETERMINING DYNAMIC CHARACTERISTICS OF MATERIALS
CONVERTER CIRCUIT FOR SWITCHING A LARGE NUMBER OF SWITCHING VOLTAGE LEVELS
ADJUSTABLE OVERFLOW
QUINOLONECARBOXYLIC ACID COMPOUNDS HAVING 5-HT4 RECEPTOR AGONISTIC ACTIVITY
RUBBER COMPOSITION FOR TREAD AND TIRE
Refuse container
NANO-STRUCTURED PARTICLES WITH HIGH THERMAL STABILITY
METALLIC COMPLEXES COVALENTLY BOUND TO CONJUGATED POLYMERS AND ELECTRONIC DEVICES CONTAINING SUCH COMPOSITIONS
PROCESS FOR TREATING A SOLID-LIQUID MIXTURE
Electrophotographic photoreceptor and method of preparation thereof and image forming method and apparatus using the photoreceptor
Pyrazinone protease inhibitors
Method for detecting medically relevant conditions in a solubilized LBC sample
System and method for monitoring and management of telecommunications equipment using enhanced internet access
Xanthine derivatives, process of their preparation and use as a medicament
Self-foaming cream
INTELLIGENT POWER PACK ASSISTED PEDESTAL TUNING FOR ELECTRONIC ARTICLE SURVEILLANCE
多用途测量仪
一种RGB LED结构
一种开关
TRANSMISSION OUTPUT CONTROL CIRCUIT, AND WIRELESS DEVICE USING THE SAME
