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
PARALLEL - CONJUGATED WELL DRILLING TOOL
摘要
申请公布号
SU1765344(A1)
申请公布日期
1992.09.30
申请号
SU19904777866
申请日期
1990.01.03
申请人
INST GORNOGO DELA SIBIRSKOGO
发明人
NECHUNAEV GRIGORIJ A,SU
分类号
E21B7/28
主分类号
E21B7/28
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Acid-cleavable radiation-sensitive compounds radiation-sensitive composition containing the same and radiation-sensitive recording material prepared therefrom
Offset correction circuit of pwm inverter
Joining of spaceframe components
Door locking system
Circuit arrangement for operating low-voltage halogen incandescent lamps
Stabilized nanoparticles which may be filtered under sterile conditions
Förfarande för framställning av en isolator
FLUID CONTROL VALVE AND SYSTEM WITH LEAK DETECTION AND
MAGNETIC RECORDING MEDIUM
PLATE-FORME DE CABINE D'ASCENSEUR A PLUSIEURS FONCTIONS INTEGREES.
Cast resin body parts for heating appliances
Terapeutisk preparat
Amidinderivater med nitrogenoksydsynteseaktiviteter
CONTROL CIRCUIT OF ELECTRONIC INDUCTION HEATING APPARATUS
MAGNETIC RECORDING MEDIUM
MASK ROM SENSE AMPLIFIER FOR HIGH SPEED OPERATION
Tilskjæring for en utstillings- og transportbeholder, samt en slik beholder
MECANISME DE CHASSE POUR APPAREIL DE TOILETTES.
FULL RANGE INK JET RECORDING MEDIUM
PROCESS FOR THE PREPARATION OF QUINACRIDONES FROM DIHYDROQUINACRIDONES IN AN AQUEOUS MEDIUM
