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
Drilling methods and equipment
摘要
申请公布号
GB2126267(A)
申请公布日期
1984.03.21
申请号
GB19820025465
申请日期
1982.09.07
申请人
* COAL INDUSTRY
发明人
DAVID HAVARD * REES
分类号
E21B7/06;E21B7/08;E21B7/18;E21B10/60;(IPC1-7):E21B7/08
主分类号
E21B7/06
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Self-cooling gas delivery apparatus under high vacuum for high density plasma applications
CONSTRUCTION ELEMENT FOR VITRIFYING A BUILDING
Pattern data verification method, pattern data creation method, exposure mask manufacturing method, semiconductor device manufacturing method, and computer program product
Robot controller and robot control method
Grinding method and grinding machine
Plasma display panel
Bleacher lumbar support
Balloon catheter having improved balloon seal
Radio communication apparatus
Polyesters containing natural mineral materials, processes for producing such polyesters, and shaped articles produced therefrom
Production method of catalyst for fuel cell and of fuel cell, and catalyst for fuel cell and fuel cell
Fuel cell system
Method of preparing organic luminescent materials stabilized by heat treatment and meaterials thus obtained
Method for caring for the skin and associated kit
Display device
Microlens array
High-fiber, high-protein pasta and noodle products
PULSED X-RAY FOR CONTINUOUS DETECTOR CORRECTION
Microfluidic rotary flow reactor matrix
Variable speed condenser fan control system
