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
SUBSURFACE WELL APPARATUS
摘要
申请公布号
GB2093092(B)
申请公布日期
1985.09.25
申请号
GB19820004470
申请日期
1982.02.16
申请人
AVA INTERNATIONAL CORP
发明人
分类号
E21B23/03;E21B34/00;E21B34/10;E21B34/14;(IPC1-7):E21B33/14
主分类号
E21B23/03
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Structure of an anti-burglar screw bolt
Filter cartridge cleaning kit
Process for producing and removing a mask layer
Method for forming a shallow trench isolation using air gap
Method and apparatus for varying the critical speed of a shaft
Dynamic road marking system and road segment provided with said system
Optical fiber tube assembly having a plug
Text recognition method using a trainable classifier
Ghost eliminating equalizer
Adaptive transmit equalizer
Data link analyzer
Nonvolatile ferroelectric memory device
ESD protection circuit for touch button
Ceramic electronic component and method for manufacturing the same
Method and device for imaging using several exposure times
Detecting graphics in color rendering dictionaries
Programmable illuminator for vision system
Television tuner having level of harmonics of oscillation signal suppressed low
Container for holding treating agent for forming ink-receiving layer container for holding ink recording device and recording method
Image forming apparatus having position sensing device
