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
WELL KICKOVER TOOL
摘要
申请公布号
GB1481533(A)
申请公布日期
1977.08.03
申请号
GB19740033818
申请日期
1974.07.31
申请人
OTIS ENG CORP
发明人
分类号
E21B23/03;(IPC1-7):E21B23/00;E21B43/12
主分类号
E21B23/03
代理机构
代理人
主权项
地址
您可能感兴趣的专利
METHODS OF MANUFACTURING THIN SECTIONS OF UNCONSOLIDATED SAMPLES AND APPARATUS OF CONSOLIDATING THE UNCONSOLIDATED SAMPLES
NITRIDE BASED LIGHT EMITTING DIODE WITH EXCELLENT EFFECT OF BLOCKING LEAKAGE CURRENT AND MANUFACTURING METHOD THEREOF
Anti torque steer system
Apparatus and method for protecting battery pack by detecting swelling phenomenon of battery cell
ENGINE MOUNTING UNIT
A HAIRDYE VESSEL
Rearing Equipment For poultry
VENTILATION SYSTEM FOR WATER TANK
Measuring Device for Bite Force
TOWING DEVICE FOR VEHICLE
GAS-BARRIER MATERIAL AND PROCESS FOR PRODUCING THE SAME
DISENGAGEMENT BEARING FOR A GEARCHANGE CLUTCH
PLOTTING POINT DATA ACQUISITION METHOD AND DEVICE, PLOTTING METHOD AND DEVICE
MONOCLONAL ANTIBODIES AGAINST PCBP-1 ANTIGENS, AND USES THEREFOR
SETTING REMINDERS FROM AN INSTANT MESSAGING APPLICATION
METHOD FOR MAKING A CONDUCTIVE SUBSTRATE, AND CONDUCTIVE SUBSTRATE MADE THEREBY
SYSTEM AND METHOD FOR DATA CALL ACCESS CONTROL
METHOD FOR SELECTING A LANGUAGE AND RECORDING MEDIUM
COLORED RESIN COMPOSITION
TUNABLE LIGHT EMITTING DIODE USING GRAPHENE CONJUGATED METAL OXIDE SEMICONDUCTOR-GRAPHENE CORE-SHELL QUANTUM DOTS AND ITS FABRICATION PROCESS THEREOF
