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
APPARATUS FOR SUPPORTING A DIRECT DRIVE DRILLING UNIT IN A POSITION OFFSET FROM THE CENTERLINE OF A WELL
摘要
申请公布号
EP0461512(A3)
申请公布日期
1993.04.14
申请号
EP19910109063
申请日期
1991.06.03
申请人
NATIONAL- OILWELL
发明人
DINSDALE, MICHAEL C.
分类号
E21B3/02;E21B15/00;E21B19/00;E21B19/02;(IPC1-7):E21B3/02
主分类号
E21B3/02
代理机构
代理人
主权项
地址
您可能感兴趣的专利
IMMUNOLOGICAL MEASURING METHOD WITH MARKER GRAIN
NEUTRON REFLECTION MIRROR
ATOMIZING DEVICE FOR FRAMELESS ATOMIC ABSORPTION
SEMICONDUCTOR PRESSURE SENSOR
ELECTRODELESS DISCHARGE TUBE
OPTICAL ENCODER
NONDESTRUCTIVE INSPECTION METHOD FOR REINFORCED CONCRETE AND DEVICE THEREOF
NEBULIZER FOR ICP ANALYSIS AND ICP ANALYSIS METHOD USING NEBYLIZER THEREOF
ROTARY APPARATUS FOR MEASURING/TESTING OF STEERING WHEEL IN WORKING RUNNING MACHINE
INFRARED SENSOR
APPARATUS FOR MEASURING SHAPE OF PAVEMENT
IMAGE PICK-UP TYPE MEASURING INSTRUMENT
MOVING TARGET APPARATUS AND FIRING RANGE THEREOF
TARGET INFORMATION DISPLAY DEVICE
CERAMIC HEAT EXCHANGER
BAG FOR DRYING FUTON
FRAME MATERIAL FOR HEAT INSULATING PANEL
COOLING AIR BLOW UP TYPE ISOLATED REFRIGERATING PLANT
PACKING BOX
AIR CONDITIONING APPARATUS