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
Downhole production well instrumentation
摘要
申请公布号
GB2309471(A)
申请公布日期
1997.07.30
申请号
GB19970001612
申请日期
1997.01.27
申请人
* BAKER HUGHES INCORPORATED
发明人
PAULO * TUBEL
分类号
E21B43/12;E21B47/00;(IPC1-7):E21B47/00
主分类号
E21B43/12
代理机构
代理人
主权项
地址
您可能感兴趣的专利
BUILDING ERECTION SYSTEM
SOUND RECORDING AND ADVERTISING APPARATUS
SYPHON PIPE MOUNTING
SPEED CONTROL MECHANISM
COIN OPERATED LIQUID DISPENSING DEVICE
ROAD EARTH HEATING MACHINE
Wheel and wheel cover
Improvements in spraying devices for the airless injection of fuel in internal combustion engines
Automatic airplane pilot
Separating apparatus
Neon tube support
Water bottle
Method for producing mica products
Method of and apparatus for making window bags
Removal of wax from hydrocarbon oil
Slider for slide fasteners
Reel structure
Bag filling machine
Building construction
Torque amplifying system