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
CORE DRILLING TOOL
摘要
申请公布号
SU791925(A1)
申请公布日期
1980.12.30
申请号
SU19742000915
申请日期
1974.03.01
申请人
VELIKOSELSKIJ MARK A,SU;KOKORIN NIKOLAJ V,SU;BERGSHTEJN OLEG YU,SU;VUGIN ROBERT B,SU
发明人
VELIKOSELSKIJ MARK A,SU;KOKORIN NIKOLAJ V,SU;BERGSHTEJN OLEG YU,SU;VUGIN ROBERT B,SU
分类号
E21B25/00;E21B21/00;(IPC1-7):E21B25/00
主分类号
E21B25/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
METHOD FOR CONTROLLING RESISTANCE WELDING MACHINE
ELECTRODE STRUCTURE IN RESISTANCE WELDING OF ROTOR AND SHAFT
MANUFACTURE OF COATED DEEP DRAWING CAN
NEEDLE POSITION INVERTING DEVICE FOR SEWING MACHINE WITH NEEDLE BAR RELEASING DEVICE
BALLOON FOR MEDICAL DEVICE AND FORMING THEREOF
HANGING/RACKING DEVICE FOR WALL CABINET
DATA COMMUNICATION CONTROL EQUIPMENT
CURRENT AMPLIFIER
POLARIZED WAVE CONVERSION ANTENNA FOR WHISPERING GALLAERY MODE
PRINTED BOARD AND FORMATION METHOD
MANUFACTURE OF SEMICONDUCTOR DEVICE
CATHODE-RAY TUBE
METHOD OF FORMING FLUORESCENT FILM
POLAR RELAY
GRAPHIC REGISTER CONTROL SYSTEM
INSULATED WIRE
LENS BARREL FOR ZOOM LENS
APPARATUS OF CONTINUOUSLY MANUFACTURING STANDARD ION SOLUTION
LIVING CONDITION MONITORING SYSTEM
LEVEL MEASURING INSTRUMENT