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 bit
摘要
申请公布号
AU727657(B2)
申请公布日期
2000.12.21
申请号
AU19980095378
申请日期
1998.08.28
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人
DJURRE, HANS ZIJSLING
分类号
E21B10/12;E21B10/16;(IPC1-7):E21B10/16
主分类号
E21B10/12
代理机构
代理人
主权项
地址
您可能感兴趣的专利
DEVICE FOR ELIMINATING THE LEAKS THROUGH THE PARTITIONS SURROUNDING THE CORE OF A P.W.R.
DYESTUFF COMPOSITION FOR HISTOLOGICAL EXAMINATIONS
SHEET FEEDING DEVICE
USE OF 1-(P-ISOPROPOXYETHOXYMETHYL-PHENOXY)-3-ISOPROPYLAMINOPROPAN-2-OL FOR THE PREPARATION OF A MEDICAMENT FOR THE REDUCTION OF INTERNAL PRESSURE IN THE EYE
DISPLAY DEVICE
NOVEL OLEFIN POLYMER COMPOSITIONS AND FOAMED ARTICLES PREPARED THEREFROM HAVING IMPROVED ELEVATED TEMPERATURE DIMENSIONAL STABILITY
SCHALTUNGSANORDNUNG ZUR ANSTEUERUNG EINER LICHTEMITTIERENDEN DIODE
HOLLOW NEEDLE FOR BIOPSY APPARATUSES
OPTICAL SENSOR FOR SELECTIVELY DETERMINING THE PRESENCE OF SUBSTANCES AND THE VARIATION OF THE REFRACTION INDEX IN THE MEASURED SUBSTANCES
METER INTERFACE UNIT FOR UTILITY METER READING SYSTEM
RF INPUT DRIVE SATURATION CONTROL LOOP
FIBRE OPTICS LIGHTING SYSTEM
CLOSURE ELEMENT FOR PIPELINES
MUSCULAR FORCE ACTUATED VEHICLE
ROTORS FOR CENTRIFUGAL SEPARATORS
SELF-LOCKING STEMMED COMPONENT FOR A JOINT ENDO-PROSTHESIS
ERGONOMIC SEATING ASSEMBLY
ADJUSTABLE FOOTREST
DEVICE AT A CUTTING UNIT
CONTACT ROD, PARTICULARLY FOR TROLLEY-BUSES
