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
DRILLING APPARATUS & CUTTER
摘要
申请公布号
GB8718646(D0)
申请公布日期
1987.09.09
申请号
GB19870018646
申请日期
1987.08.06
申请人
A-Z INTERNATIONAL TOOL CO
发明人
分类号
E21B10/20;E21B10/22;E21B10/34
主分类号
E21B10/20
代理机构
代理人
主权项
地址
您可能感兴趣的专利
ABNORMAL DISCHARGE PREDICTION METHOD AND DEVICE OF PLASMA PROCESSING APPARATUS; AND PLASMA PROCESSING APPARATUS WITH ABNORMAL DISCHARGE PREDICTION FUNCTION
ALKALINE BATTERY
METHOD FOR MANUFACTURING MAGNETIC DISK SUBSTRATE
TOUCH SENSOR
Application of liquid sodium sulfate from recycling of batteries and accumulators for cleaning the mine brine from barium and radium
Device for supporting and monitoring the resuscitating activity
Device for administration of liquids by the method of inhalation
Device and method for testing the resistance to abrasion of piping elements made from polymeric materials
System structure of the light bar
Adjustable dual-component media spray nozzle
Water-air sprinkling battery
Countercurrent jet mill
Fremgangsmåde til enzymatisk syntese af (7s)-1-(3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl)-n-methylmethanamin og anvendelse til syntese af ivabradin og salte deraf
Bodenträger
Lichtemittierender Spielzeug-Baustein
ENCAPSULATION OF IMMISCIBLE PHASES IN SILK FIBROIN BIOMATERIALS.
IMMUNADJUVANS
ADAPTIVE SUPPRESSION OF VEHICLE RESTRAINT SYSTEM.
Device and method for evaluating physiological condition
ZINC PHOSPHATE CONTAINING COMPOSITIONS.