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
EARTH-DRILLING BIT
摘要
申请公布号
SU1130687(A1)
申请公布日期
1984.12.23
申请号
SU19823508952
申请日期
1982.11.05
申请人
ISAEV PAVEL G,SU
发明人
ISAEV PAVEL G,SU
分类号
E21B10/46;(IPC1-7):E21B10/46
主分类号
E21B10/46
代理机构
代理人
主权项
地址
您可能感兴趣的专利
LASER RECORDING MEDIUM
METHOD AND DEVICE FOR MOLDING SSSHAPED MOLDING PORTION TO METALLIC SHEET
PLL
COATING OF SOLID CATALYST CARRIER
MANUFACTURE OF CATION EXCHANGE RESIN
POWERRSAVING METHOD AND APPARATUS FOR CONTROLLING AIRRCONDITIONING
ADSORPTION AND REMOVAL OF AMMONIA
SHEET THICKNESS CONTROLLER FOR TANDEM MILL
LIFT TRAY DEVICE WITH IMMOVABLE PERFORATED FLOOR
MANUFACTURE OF RESINATED CLOTH GLOVE
METHOD OF UNITING THERMOPLASTIC RESIN SHEET
BRAKE MASTER CYLINDER DEVICE
PUNCHING WORKING METHOD FOR METALLIC PLATE AND ITS PUNCHER
INJECTION ANGLE CORRECTING DEVICE IN INK JET PRINTING DEVICE
MONITOR DEVICE OF SWITCHER SYSTEM
AGITATING WINGS FOR AGITATOR
INTEGRATED HEAD
PRODUCTION OF PATTERN FOR CASTING
RADAR ANTENNA FOR TWO FREQUENCIES
RECORDING SYSTEM FOR TRACK FORMAT