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
HOLE REAMER ROCK RECEIVER
摘要
申请公布号
SU1639113(A1)
申请公布日期
1992.06.15
申请号
SU19884413724
申请日期
1988.02.25
申请人
VNII ORG MEKH SHAKHT
发明人
IVANOV V.V.,SU;KUPCHINSKIJ I.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
EXHAUST GAS TREATING AGENT
FLEXIBLE REINFORCED PRESSURE HOSE AND ITS PREPARATION
DAMPER
SPRING RIGGING
BIPOLAR MEMORY
CURRENT TRANSFORMER
TEST TRANSFORMER
METHOD OF DISPOSING ORGANIC WASTE
MANUFACTURE OF PIECEEHOLDING PLATE
CIRCULAR POLARIZED WAVE GENERATOR
AUTOMOTIVE AIR CONDITIONING SYSTEM
STARTING COMPENSATOR FOR ROLLING MILL
SPECTROPHOTOMETER
Sulfur electrode for sodium-sulfur batteries
Pulse-echo ultrasonic-imaging display system having time-varied effective aperture
IDENTIFYING SYSTEM FOR REVERTING EQUIPMENT
MEMORY UNIT
METHOD OF ADJUSTING RESIDUAL STRESS ON METAL SURFACES
Throttle valve opening control device
Acceleration and/or deceleration control system for mechanical power drives
