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
Safety valve
摘要
申请公布号
GB0620770(D0)
申请公布日期
2006.11.29
申请号
GB20060020770
申请日期
2006.10.19
申请人
WEATHERFORD/LAMB INC.
发明人
分类号
E21B34/00;E21B34/10
主分类号
E21B34/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Contents conversion system, automatic style sheet selection method and program thereof
Vehicle arresting bed system
Pressurized metered dose inhalers and pharmaceutical aerosol formulations
METHOD FOR SEPARATING AND ANALYZING HYDROGEN ION AND ION CHROMATOGRAPHIC INSTRUMENT
Parts design change supporting system, program, and recording medium
DISPLAY AND DISPLAY DRIVE CIRCUIT OR DISPLAY DRIVE METHOD
Tool for surface roughing, in particular for flooring
Flame retardant epoxy resin modified with phosphorus and silicon
Modified L-nucleic acids
Polymeric article having a shaded appearance of anisotropic coloration made of divided elements and process for producing the same
Power supply unit
COSMETIC PAPER
Composable messaging protocol
Microelectrical mechanical system with improved beam suspension
Air filter and air circulation system for a motor vehicle comprising the air filter
FINGERPRINT IDENTIFICATION METHOD AND APPARATUS
Wireless communication system to support real time services and handoff method thereof
WORKSTATION
Monolithic anode adapted for inclusion in an actinic radiation source and method of manufacturing the same
METHOD AND APPARATUS FOR DISPENSING VISCOUS MATERIAL
