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
Wellhead assembly and method
摘要
申请公布号
GB2436480(B)
申请公布日期
2010.05.12
申请号
GB20070011482
申请日期
2006.02.03
申请人
PETROWELL LIMITED
发明人
DANIEL PURKIS
分类号
E21B33/04
主分类号
E21B33/04
代理机构
代理人
主权项
地址
您可能感兴趣的专利
RESIN COATED ALUMINUM PLATE AND MANUFACTURING METHOD OF THE SAME
GAS-BARRIER PACKAGE
POCKET FILM FOR BOOKMARKER
PRINTING-PLATE MAKING SYSTEM, PRINTING-PLATE MAKING METHOD, IMAGE RECORDING APPARATUS FOR PRINTING PLATE, AND PRINTING-PLATE BENDING DEVICE
METHOD FOR CLEANING AUTOMATIC INTAGLIO INK SUPPLY DEVICE AND CLEANING DEVICE
CARRYING MECHANISM AND RECORDER WITH IT
SEAL
SHEET ROLL PRINTER
METHOD AND DEVICE FOR MANUFACTURE OF CONNECTING ROD
GRINDING WHEEL AND MANUFACTURING METHOD THEREOF
MANUFACTURING METHOD OF MEMBER WITH RECESS, MEMBER WITH RECESS, LENS BASE PLATE, TRANSMISSION TYPE SCREEN AND REAR TYPE PROJECTOR
MICRO-STRUCTURE, MANUFACTURING METHOD THEREOF, AND MICRO-ELECTROMECHANICAL DEVICE
HELICAL BROACH FOR MACHINING INTERNAL GEAR
CONTROL DEVICE OF MACHINE TOOL
PIPING LINING PROCESS
WATER TREATMENT APPARATUS
DRESSED BUILDING PLATE AND ITS REPAIRING METHOD
OIL-WATER SEPARATOR
ENERGY SAVING TYPE GARBAGE DISPOSER
BAG BODY FOR DEWATERING WATER-CONTAINING SOIL
