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
Dual control line system and method for operating surface controlled sub-surface safety valve in a well
摘要
申请公布号
GB0917053(D0)
申请公布日期
2009.11.11
申请号
GB20090017053
申请日期
2009.09.29
申请人
WEATHERFORD/LAMB, INC
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
您可能感兴趣的专利
KOTATSU (FOOT WARMER) IN FRAME WORK
ROTARY ELECTRIC MACHINE
CONTROLLING METHOD FOR RATE OF ETCHING
COMPENSATING DEVICE FOR RECORDING CHARACTERISTIC
ULTRASONIC MEASURING DEVICE FOR DISTANCE
CONTROLLING DEVICE FOR IMPRESSION OF VOLTAGE FOR INSPECTING GROUND FAULT POINT OF DISTRIBUTION LINE
DEFECT DETECTOR FOR STATIONARY POWER CONVERTER
SIGNAL PROCESSING METHOD FOR MAGNETIC RECORDER
SERVO-TYPE VOLUME FLOWMETER
KOTATSU (FOOT WARMER) IN FRAME WORK
KEROSINE VAPORIZING BURNER
SEMICONDUCTOR PRESSURE SENSOR DEVICE
SHEATH TYPE THERMOCOUPLE AND MANUFACTURE THEREOF
DEVICE FOR MEASURING WEIGHT OF ROLLING STOCK
TEMPERATURE COMPENSATING METHOD FOR MAGNETO-ELECTRIC TRANSDUCER DEVICE
METHOD AND DEVICE FOR MULTIPLEX HARDENING
PRODUCTION OF PARTS REQUIRING COMPOUND CHARACTERISTICS
MANUFACTURE OF SINTERED FE-CR-CO MAGNET ALLOY
CONTROLLING METHOD FOR PWM CONTROL CONVERTER
FLUID TRANSPORTING DEVICE