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
摘要
申请公布号
KR920006189(Y1)
申请公布日期
1992.09.17
申请号
KR19900006330U
申请日期
1990.05.11
申请人
KIM, DONG - KI
发明人
KIM, DONG - KI
分类号
E21B3/00;(IPC1-7):E21B3/00
主分类号
E21B3/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
RECORDING SOLUTION
METALLIZED COMPOSITE STRUCTURE AND ITS MANUFACTURE
MANUFACTURE OF INFRARED-RAY DETECTOR
INK JETTING APPARATUS
DIAPER ANNUNCIATOR
CONTROLLER FOR BURNER
INJECTION DEVICE OF INJECTION MOLDING MACHINE
ULTRASONIC FLUOROSCOPY DEVICE
TIMER DEVICE
DETECTING METHOD OF ULTRASONIC FLAW
PREVENTING DEVICE FOR WATER-SURFACE FREEZING
CORROSION PREVENTING METHOD FOR METALS IN SYSTEM USING CALCIUM CHLORIDE BRINE
INK-JET RECORDER
METHOD OF AND APPARATUS FOR DETECTING ELECTROMAGNETIC RADIANT RAYS AND PICKING UP SIGNAL THEREOF
ANTIBIOTIC KEEPER
MANUFACTURE OF 2-PHENYL-2H-1,2,3-TRIAZOLE
PLAIN BEARING OUTER SEAL
ELECTROLYTIC WORKING DEVICE
PREPARATION OF PLASTIC CURED MATERIAL
FLAME RETARDANT COMPOSITION
