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
Process and apparatus for reducing surge in lead lines
摘要
申请公布号
US3198133(A)
申请公布日期
1965.08.03
申请号
US19630293520
申请日期
1963.07.08
申请人
PHILLIPS PETROLEUM COMPANY
发明人
ELLIOTT RALPH W.
分类号
E21B43/12
主分类号
E21B43/12
代理机构
代理人
主权项
地址
您可能感兴趣的专利
COOLING STRUCTURE FOR BELT CONTINUOUSLY VARIABLE GEAR SHIFTER
ELECTRONIC EQUIPMENT TERMINAL
SIGNAL PROCESSOR
DATA COMMUNICATION EQUIPMENT
FLOW RATE VALVE CONTROL DEVICE AND MANUFACTURE OF FLOW RATE VALVE
COMPOUND SEMICONDUCTOR LIGHT EMITTING DEVICE
IMAGE REPRODUCTION DEVICE AND IMAGE REPRODUCTION SYSTEM
DECODER FOR MOVING PICTURE SIGNAL AND ESTIMATING METHOD FOR ESTIMATED MOTION VECTOR INFORMATION
SELECTIVE DRY-ETCHING METHOD FOR II-VI GROUP COMPOUND SEMICONDUCTOR
PRODUCTION PROCESS OF II-VI COMPD. SEMICONDUCTOR DEVICE
DRIVE CONTROL APPARATUS FOR ELECTRIC CAR
METHOD FOR SWITCHING COMMUNICATE OF COMMUNICATION EQUIPMENT
BULB FIXING DEVICE
PORTABLE RADIO COMMUNICATION EQUIPMENT
PERMANENT MAGNET ELECTRIC ROTATING MACHINE AND POLE POSITION DETECTING METHOD THEREFOR
MOTOR DRIVER
MECHANICAL RESONANCE DETECTOR AND VIBRATION CONTROLLER FOR MOTOR CONTROL SYSTEM
TORQUE CONTROLLER IN VECTOR CONTROL SYSTEM FOR INDUCTION MOTOR
COUNTER ELECTROMOTIVE FORCE COMPENSATION SYSTEM FOR SWITCH TYPE RELUCTANCE MOTOR
PLL CIRCUIT
