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
Joint fileté du type à emboîtement conique
摘要
申请公布号
FR71006(E)
申请公布日期
1959.10.07
申请号
FRD71006
申请日期
1956.10.29
申请人
N.V. DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ
发明人
分类号
E21B17/042;F16B33/02;F16B39/30;F16L15/06
主分类号
E21B17/042
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Power semiconductor device
Stepping motor and System thereof
A table for 3D scanning tooth structure model
ELECTRIC MOTOR DRIVING APPARATUS AND ELECTRIC MOTOR DRIVING METHOD
Foldable flexible display device with guide device
Composition against striae distensae with the extract of asparagus officinalis
The Method of manufacturing the Hybrid engine Motor Enhanced Function of maintenance and Control and Hybird Tractor Using the method
INVERTER FOR VEHICLE
Intelligent system for integrated operation of data center and method for operation thereof
ORGANIC FERTILIZER PRODUCTION SYSTEM
A CIRCUIT BREAKER
METHOD FOR PROCESSING DATA AND AN ELECTRONIC DEVICE THEREOF
Floor noise, vibraion resilient structure and construction method thereby
Pre-Cleaning a Semiconductor Structure
TERNARY AZEOTROPIC-LIKE COMPOSITIONS WITH 1,1,1,2,3,3-HEXAFLUORO-3-METHOXY-PROPANE AND TRANS-1,2-DICHLOROETHYLENE
TOUCH PANEL
Device and method for drive of application
ELECTRO DEVICE FOR MANAGING HARDWARE CONTROLLING RIGHT AND METHOD FOR MANAGING HARDWARE CONTROLLING RIGHT
LIQUID CRYSTAL ALIGNMENT AGENT CONTAINING POLYAMIC ACID ESTER, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT
ABRASIVE ARTICLE AND METHOD OF FORMING