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
Procédé et appareil de mise en place de tubes de puits
摘要
申请公布号
FR1349523(A)
申请公布日期
1964.01.17
申请号
FR19630921252
申请日期
1963.01.12
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N. V.
发明人
分类号
E21B19/00
主分类号
E21B19/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Y-slot waveguide antenna element
Push-button switch
Hot annealed weld inspection
Noise isolator circuit for power supply fan
Shutter member for a magnetic disk cartridge
Apparatus for monitoring housed turbine blading to obtain blading-to-housing distance
Method and apparatus for controlling reverse-conducting GTO thyristor
Control apparatus for automotive power-operated convertible roof
High speed induction motor with squirrel cage rotor
Rotational actuator for vehicle suspension damper
Peptide elastase inhibitors and methods
Method for forming a metal layer with pattern on a substrate
Method for making bakery products
Apparatus and process for carbon black production
Refueling machine mounted fuel assembly inspection T.V. cameras
Four quadrant control circuit for a brushless three-phase d.c. motor
Optical sensing equipment
Method of carrying out a treatment on metal pieces with the addition of an added material and with the use of a power laser
Transformer switch
Method of separation of material from material mixtures
