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
A modulated bias unit for rotary drilling.
摘要
申请公布号
EP0685624(A3)
申请公布日期
1997.01.15
申请号
EP19950303765
申请日期
1995.06.01
申请人
CAMCO DRILLING GROUP LIMITED
发明人
BARR, JOHN DENZIL;THORP, RICHARD EDWARD;RUSSELL, ROBERT ANTHONY
分类号
E21B4/00;E21B7/04;E21B7/06;E21B7/08;E21B17/10;(IPC1-7):E21B4/00
主分类号
E21B4/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
EINRICHTUNG ZUR PRUEFUNG EINER WICKLUNG AUF WINDUNGS- ODER LAGENSCHLUSS
UNTERSTUETZUNGSGESTELL FUER SESSEL, STUEHLE, TISCHE U.DGL. MOEBELSTUECKE
BEFAESTNINGSSAET BESTAAENDE AF EN UDSPILLINGSDYVEL OG EN BEFAESTNNINGSSKRUE
PROCESS FOR PREPARING 3,4-DICYANO-1,2,5-THIADIAZOLE
ALKOXYSILANE COMPOUNDS AND THEIR PREPARATION
QUAKEPROOF PIPE JOINT
SPACER EXPANDER FOR OIL REGURATION RING PROVIDED WITH SLIP RATCH
AUTOMOTIVE BODY
DIFFERENTIAL-DETEKTORSYSTEM MIT NICHT-REDUNDANTER FEHLERKORREKTUR
WERKWIJZEN VOOR HET BEREIDEN EN TOEPASSEN VAN PEPTIDEN.
COLOURING COMPOSITION
DOUBLE-TWIST SPINDLE HAVING A THREAD BRAKE
PHOTOSETTING ADHESIVES AND THEIR USE IN THE PRODUCTION OF LAMINATED ARTICLES
PERFEZIONAMENTI APPORTATI A CONNETTORI ELETTRICI.
TURBULENCE-TYPE MIXER
IMPIANTO E PROCESSO DI GASSIFICAZIONE DI CARBONE.
IN PARTICOLARE PER MANTENERE APERTI SOSTEGNO PER ELEMENTI INCERNIERATI COPERCHI INCERNIERATI
Electrically conducting material, esp. silver contg. cadmium oxide
Stepping motor for machine tools and office equipment
Bush type current transformer
