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
Milling tool for well casings
摘要
申请公布号
EP0459610(B1)
申请公布日期
1996.07.03
申请号
EP19910302351
申请日期
1991.03.19
申请人
SMITH INTERNATIONAL, INC.
发明人
SPRINGER, JOHANN B.
分类号
E21B10/32;E21B23/00;E21B29/00;(IPC1-7):E21B29/00
主分类号
E21B10/32
代理机构
代理人
主权项
地址
您可能感兴趣的专利
A bridge rectifier for an alternator
Concrete pipe
Web tension control device for a corrugated board machine
Preparation of foamable metal bodies and metal foams
THERMOPLASTIC RESIN COMPOSITION
Spread spectrum communication system
Memory array with reduced charging current
Dynamic logic gate with relaxed timing requirements and output state holding
Engine rotation angle detection device arrangement configuration
Rectifier for diffusion absorption system
Intervertebral prosthetic device
Detector arrangement for a spectroscopic analyser
MULTI-FUNCTIONAL BIOMEDICAL ELECTRODES
DEVICE AND METHOD FOR DISPLAYING LUMINOUS RADIATION ON AN AIRCRAFT
SLEEVE OF A GLAND ASSEMBLY
SOFTWARE START-UP METHOD FOR A TRANSMITTER HAVING A PLURALITY OF REDUNDANCY SWITCHING FUNCTIONS
Buffered optical fibers and methods of making same
Emergency call in a telecommunications network
TREATMENT FOR FABRICS
ANTISTATIC COATING CONTAINING GRAPHITE FOR BACKINGS OF ABRASIVE SHEETS
