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
Hydraulically expandable well packer
摘要
申请公布号
US3351349(A)
申请公布日期
1967.11.07
申请号
US19650495853
申请日期
1965.10.14
申请人
BAKER OIL TOOLS, INC.
发明人
CHENOWETH DAVID V.
分类号
E21B33/127
主分类号
E21B33/127
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Cache coherency protocols with posted operations
Method and system for providing geographic specific services in a satellite communications network
Mounting of a drive motor in the fuser section of an electrophotographic machine
Image heating apparatus
Toner supply method in picture image forming system and picture image forming system
Optical fiber for light amplifier
High noise suppression microphone
Application programming interface for modem and ISDN processing
Data rate smoothing
Double-door safety access port for automated tape library
Laser position array optical measuring system and method
Sensor device for sensing biometric characteristics, in particular finger minutiae
Optical method for the transduction of remote arrays of electromechanical sensors
Eye activity monitor
Phase locked loop with high-speed locking characteristic
Noise tolerant wide-fanin domino circuits
Method and an associated device for controlling a DC-DC converter based upon an iterative procedure
Resistive bolometer sensor
Structure for preventing electromagnetic interference of central processing unit
Knockdown hand bell
