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
DEVICE FOR THE CONNECTION /DISCONNECTION OF THE THREADED JOINTS
摘要
申请公布号
RO110967(B1)
申请公布日期
1996.05.30
申请号
RO19890142319
申请日期
1989.11.06
申请人
INSTITUTUL DE CERCETARE STIINTIFICA SI INGINERIE TEHNOLOGICA PENTRU UTILAJ PETROLIER, PLOIESTI
发明人
PANAITESCU VICTOR - CLAUDIU
分类号
E21B19/06;(IPC1-7):E21B19/06
主分类号
E21B19/06
代理机构
代理人
主权项
地址
您可能感兴趣的专利
TELEPHONE SET WITH RINGER TONE NUMBER SETTING FUNCTION
CLEANING METHOD
CONDUCTIVE ELECTRODE COMPOSITION FOR LAMINATED CERAMIC CAPACITOR
TWO-DIRECTION DISTRIBUTOR
FILTER FOR DIGITAL SIGNAL
HIGH FREQUENCY IMPEDANCE MATCHING CIRCUIT
VIBRATION PROOF DEVICE
CONTROL METHOD OF LCR MEASURING DEVICE
PULSE COUNTING METHOD IN LOGIC SIGNAL ANALYSIS DEVICE
DATA PROCESSING METHOD OF ANALYSIS INSTRUMENT UTILIZING COMPUTER
MATERIAL TESTING MACHINE
WEIGHT MEASURING DEVICE
SURFACE DEFECT INSPECTION DEVICE
SPEECH RECOGNITION DEVICE
PHOTOINITIATOR AND PHOTOPOLYMERIZABLE COMPOSITION
CONTACT ELECTRIFIER
SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL
VEHICLE DIAGNOSIS SYSTEM
UNMANNED GUIDING DEVICE
STOP WATCH