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
ROTARY DRILLING HEAD
摘要
申请公布号
GB2238068(A)
申请公布日期
1991.05.22
申请号
GB19900023526
申请日期
1990.10.30
申请人
* MASX ENERGY SERVICES GROUP INC
发明人
THOMAS F. * BAILEY;JOHN E. * CAMPBELL
分类号
E21B33/08
主分类号
E21B33/08
代理机构
代理人
主权项
地址
您可能感兴趣的专利
WELDING WORK ARRANGED STATE DETERMINING METHOD FOR CYLINDRICAL BATTERY
HEAT TRANSPORTING SYSTEM AND ITS OPERATING METHOD
POSITION DETECTING DEVICE FOR MOVING OBJECT
NAVIGATION DEVICE
INK-JET RECORDING DEVICE
INKJET RECORDING APPARATUS
EQUIPMENT AND METHOD FOR SPINNING MULTI-COLORED FILAMENT FROM SINGLE SPINNERET AND BLENDED FILAMENT SPUN THEREBY
EMBOLECTOMY CATHETER
SLOW RELEASE PERCUTANEOUS MEDICINAL COMPOSITION CONTAINING SMALL PELLET OF BILE ACID
Exhaust gas burner reactor
Method of communicating monitor/management information and communication devices in network including communication devices connected through switched network
Operational amplifier for stably driving a low impedance load of low power consumption
Pump dispenser with combined inlet and outlet ports
Abnormal tire condition warning system
Antibodies that bind to a ligand-induced binding site on GPIIIa
Reversible door frame threshold
Black liquier gasification process operating at low pressures using a circulating fluidized bed
Spread spectrum wireless telephone system
SAFETY DEVICE OF VEHICLE
SAFETY DEVICE FOR VEHICLE
