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
DRILL STRING VIBRATION DAMPENER
摘要
申请公布号
RU2100563(C1)
申请公布日期
1997.12.27
申请号
RU19950119610
申请日期
1995.11.21
申请人
INSTITUT GORNOGO DELA SO RAN
发明人
ALEKSEEV SERGEJ E
分类号
E21B17/07;(IPC1-7):E21B17/07
主分类号
E21B17/07
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Column packings for liquid chromatography
Process for producing foamed material from waste paper and the like
Article packaging system
Length-adjusting device for control cable
BENZENE DERIVATIVE SUBSTITUTED BY HETEROGENEOUS RING AND HERBICIDE
Annular circuit components coupled with printed circuit board through-hole
Video display apparatus and external storage device used therein
Receptors for fibroblast growth factors
Disposable sanitary speculum for timpanic thermometer probe
Liquid crystal compositions
High foaming nonionic surfactant based liquid detergent
Workstation controller for a data processing system
Automobile tire
Vehicle wheel
Keyboard and stand therefor
Tuner for television
Pager
Battery cover for a portable radio
Book with liquid and particulate matter globe insert
Mechanical pencil