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
Well tool
摘要
申请公布号
GB850200(A)
申请公布日期
1960.10.05
申请号
GB19590017874
申请日期
1959.05.26
申请人
CAMCO, INCORPORATED
发明人
分类号
E21B43/14
主分类号
E21B43/14
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Method of localizing a moving body
Vacuum manifold with quick connect-disconect latch assembly
Method for increasing resolution in a compatible television system
Physiologically responsive pacemaker and method of adjusting the pacing interval thereof
Intelligent assistant for using and operating computer system capabilities to solve problems
Package for microwave cooking with controlled thermal effects
Receptor sheet for impact printers
Reinforced composite structures
Apparatus for improved aeration of liquids
Sensor having ion-selective electrodes
Fresnell lens and filter for use with computers and the like
Titanocenes and a radiation-polymerizable composition containing these titanocenes
Fermentation methods and apparatus
System and method for removing volatile components from an aqueous medium
Apparatus for manufacturing soft ice cream and the like
Cylinder block structure for multicylinder internal combustion engines
Method of and apparatus for altering the moisture content of running webs
Self-retained platform cooling plate for turbine vane
Secure data processing system architecture with format control
Nuclear magnetic resonance imaging apparatus
