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
DRILLING BIT
摘要
申请公布号
SU663834(A1)
申请公布日期
1979.05.25
申请号
SU19752300057
申请日期
1975.12.09
申请人
DO G PK EXI KOMPLEKSNOJ MEKH SHAKHT DONGIPROUGLEMASH
发明人
POPOV IGOR S,SU;MARTYANOV YURIJ A,SU
分类号
E21B10/60;(IPC1-7):E21C13/00
主分类号
E21B10/60
代理机构
代理人
主权项
地址
您可能感兴趣的专利
CERAMIC BURNER OF HEAT INTENSIVE TYPE
FUEL FILLER CAP
DIVIDING METHOD FOR TIMER
PACKAGE BOX TRANSFERRING DEVICE
EQUIPMENT FOR FUSING STUD PIN FOR PANEL
SEMICONDUCTOR DEVICE WITH IMPROVED OVERLAY MARGIN AND FABRICATION METHOD THEREOF
WATER TREATMENT EQUIPMENT OF MONOLITHIC TOWER TYPE AND METHOD THEREOF
PROCESS FOR PREPARING THERMOPLASTIC RESIN HAVING HIGH CHEMICAL-RESISTANCE
LIQUID CONTAINER
TETRAHYDROFURAN DERIVATIVE AND METHOD THEREOF
METHOD FOR MANUFACTURING ELECTROLYTIC GALVANIZED IRON HAVING SUPERIOR BRIGHTNESS AND WHITENESS
METHOD FOR REPLICATING AND SYNCHRONIZING DATABASE USING OBJECT IDENTIFIER
APPARATUS FOR SENSING LOCATION OF CASSETTE FOR WAFER LOADING
PEDAL ASSEMBLY OF CAR FOR DRIVE TRAINING
FABRICATION METHOD OF SEMICONDUCTOR DEVICE FOR PREVENTING SHORT CIRCUIT BETWEEN INTERCONNECTION LINE AND METAL ELECTRODE
THERMOTHERAPY CHAIR
PROTECTING APPARATUS OF LIQUID CRYSTAL DISPLAY DEVICE
SOLENOID DRIVING CIRCUIT
SYNCHRONIZING DEVICE OF MANUAL TRANSMISSION FOR VEHICLE
FABRICATION METHOD OF THIN FILM TRANSISTOR
