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
Well packer and well production apparatus
摘要
申请公布号
US3059699(A)
申请公布日期
1962.10.23
申请号
US19580729172
申请日期
1958.04.17
申请人
BROWN OIL TOOLS, INC.
发明人
BROWN CICERO C.
分类号
E21B33/128
主分类号
E21B33/128
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Head-protecting airbag device
Method of fabricating a FinFET
Chip card with simultaneous contact and contact-less operations
Macrolides and methods for producing same
Automatic recirculation airflow damper
Timing refractory period for cardiac resynchronization pacing
Frequency domain training of prefilters for receivers
Electrographic ribbon and method implementing a skive
Microscopy imaging system and method
Network modelling
Fitting protecting apparatus of developer cartridge and image forming apparatus having the same
Data processing device
Electronic device capable of receiving a member
Lens barrel
Edge connector for field changeable graphics system
Control circuit and process for a cathode ray tube display control apparatus
Finger feeling numerical buttons for commercial electronic remote control
Method of anodizing valve metal derived anode bodies and electrolyte therefore
Differential amplifier operable in wide range
Computing device bezel and facia button therefor