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
VALVE APPARATUS
摘要
申请公布号
GB2045317(B)
申请公布日期
1983.03.16
申请号
GB19800008534
申请日期
1980.03.13
申请人
BAKER INTERNATIONAL CORP
发明人
分类号
E21B34/00;E21B34/12;(IPC1-7):E21B43/12
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
Scanning apparatus with dynamic focusing
Polymers of hexahydrodiazaphosphorines or diazaphospholidines and silanes
Counter apparatus
Snap-in push button operator
Communications equipment printer
High chambered coke oven structure
Low oxygen-silicon base addition alloys for iron and steel refining
Nitrogen-containing alloy and its preparation
Fluid quenching apparatus for producing a differentially toughened zone in a toughened glass
Ball retarder
Suspension unit
Metal billet homogenizing furnace
Fluid control devices
Pipe heating system for trailers
Variable vane stator ring
Means for alignment of components of a fabricated article
Timer adjusted temperature controlling means for ovens and the like
Boat launching accessory
Cap skirt
Material conveying and distributing device
