Dual flapper barrier valve,申请号GB20100020596-传众专利搜索

首页产品黄页商标征信

会员服务注册登录

法人/股东/高管

发明名称	Dual flapper barrier valve
摘要
申请公布号	GB2474786(B)	申请公布日期	2011.10.19
申请号	GB20100020596	申请日期	2007.06.12
申请人	WEATHERFORD/LAMB INC.	发明人	MICHAEL FOSTER;STEPHEN L JACKSON
分类号	E21B34/06;E21B34/10	主分类号	E21B34/06
代理机构		代理人
主权项
地址

您可能感兴趣的专利

METHOD FOR EFFICIENT ROUTING IN WIRELESS MESH NETWORK

ICI CANCELLATION METHOD IN OFDM SYSTEM

ABSORBABLE ARTICLE FOR MOUNTING AUXILIARY PAD

Silicon carbide membrane, method for producing it and hydrogen separation membrane for high temperature using it

A obstacle sensing system for train and a derailment sensing system for train and a system having theire

DEVICE FOR DETECTING WIRE EXPOSED FROM BELT OF TIRE

Connecter for LED bulb

METAL ELECTRIC CIRCUIT

IMMOBILIZATION FIXTURE FOR MAGNETIC RESONANCE IMAGING

HIGH-COMPRESSION BALER

Menetelmä ja laite jäteveden puhdistamiseksi

Polymer compound and device using the same

Honey wound dressing

Menetelmä paperin ja kartongin valmistamiseksi ja muodostettu tuote

Apparatus configured to lift and weigh a load

Preparation of bile acids and intermediates thereof

TRANSFORMABLE TOY

Cover for protecting the corner of an airconditioner outdoor device