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
TELESCOPICALLY EXTENSIBLE DRILLING ROD
摘要
申请公布号
SU899834(A1)
申请公布日期
1982.01.23
申请号
SU19802871194
申请日期
1980.01.18
申请人
UK NI PK I PODZEMNOJ GIDRAVLICHESKOJ DOBYCHI UGLYA
发明人
DRUPOV NIKOLAJ A,SU;LUKYANCHENKO EVGENIJ S,SU
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
ANNEALING SEPARATION AGENT FOR PRODUCING GRAIN-ORIENTED SILICON STEEL WITH SMOOTH SURFACE AND GOOD MAGNETIC PROPERTY
Method of Polishing a semiconductor-on-insulator structure
CONTAINER SYSTEM
NEUROTHERAPEUTIC AZOLE COMPOUNDS
Apparatus and method for load balancing in multi core processor system
Thin Film Transistor Array Substrate And Method For Fabricating The Same
IMAGE DISPLAY DEVICE
Coupled torsion beam type suspension having variable characterize device in vehicle
MULTI-BEAM ANTENNA APPARATUS
Rough cleaning unit trays
method of routing protocol based on AODV
VEHICULAR INPUT MANIPULATION APPARATUS
VACUUM PACKING MACHINE
Secretion signal peptide linked Exendin-4 gene transduced pancreatic islet cluster for treatment of type Ⅰ diabetes
AIR NOZZLE FOR LASER OPTIC HEAD
DOOR ASSEMBLY FOR VEHICLE
Method for implementing Key Sharing and Update mechanism utilizing Watermark
METHOD AND APPARATUS FOR IMPROVING THE LATERAL SUPPORT PROVIDED BY THE LEGS OF A JACK-UP DRILLING RIG
METHOD FOR DETERMINING DEAD ZONE OF VALVE
METHODS AND AQUEOUS BASED WELLBORE FLUIDS FOR REDUCING WELLBORE FLUID LOSS AND FILTRATE LOSS
