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
摘要
申请公布号
JPS60120099(U)
申请公布日期
1985.08.13
申请号
JP19840007050U
申请日期
1984.01.20
申请人
发明人
分类号
E21B19/24;(IPC1-7):E21C9/00
主分类号
E21B19/24
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Extended life source arc chamber liners
Soybean variety 93B47
Preparation of flexible polyurethane foams
Method for fabricating a trench isolation for electrically active components
Target fabrication method for cylindrical cathodes
Process and device for reducing the ignition voltage of plasmas operated using pulses of pulsed power
Diaphragm cell cathode structure
First stage salicidation of cobalt during cobalt deposition or subsequent Ti or Tin cap deposition using energy from a directional plasma
Soft absorbent tissue containing hydrophilic polysiloxanes
Continuous digester having a sectioned top separator with multiple liquor extraction ports
Swing regulating mechanism and wrist emulator for assisting an amputee in swinging a golf club
Medical appliance for treatment by ionizing radiation
Method and device for developing accurate aim
Flap disc
Pickup apparatus for semiconductor chips
Supporting frame for a portable compressor
Method of compensating for cutter deflection
Pneumatic transport of chargeable resin powder
Process for the transportation of naphtha in a crude oil pipeline
Toy washing machine