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
Adjustable downhole tool with castellations
摘要
申请公布号
GB2347443(A)
申请公布日期
2000.09.06
申请号
GB19990005050
申请日期
1999.03.05
申请人
* CUTTING & WEAR RESISTANT DEVELOPMENTS LIMITED;* TOOLBOX DRILLING SOLUTIONS LIMITED
发明人
MARK ALEXANDER * RUSSELL;ANDREW * OLLERENSHAW
分类号
E21B17/10;E21B23/00;E21B23/04;E21B47/09;(IPC1-7):E21B17/10;E21B23/01
主分类号
E21B17/10
代理机构
代理人
主权项
地址
您可能感兴趣的专利
DEVICE FOR MANUFACTURING A THIN DOUGH - LIKE MATERIAL
ANTI-INCRUSTANT COMPOSITION FOR REMOVING MINERAL SCALE FORMED IN WATER COOLING CIRCUITS AND EVAPORATION PLANTS
SYNERGISTIC HERBICIDAL COMPOSITION
PUMP SUCTION ROD
HYDRAULIC SYSTEM
METHOD AND APPARATUS FOR BREAK-POINT CHLORINATION OF WASTE WATER
A METHOD OF OBTAINING AN OPTIMUM YIELD OF GAS OF OPTIMAL QUALITY BY GASIFICATION OF HIGH ASH-CONTENT BITUMINOUS FUELS IN A GASIFIER
APPARATUS FOR PRODUCING BIOGAS
A WATER DISTRIBUTION MEANS FOR USE IN AN AIR COOLER
DOSAGE INHALATOR
A PROCESS FOR THE PREPARATION OF QUINOLINE DERIVATIVES
DEVICE PROVIDED WITH RETRACTABLE ARMS FOR THE ANCHORING OF AN INSTRUMENT IN A CAVITY
PROCESS FOR PREPARING AZO-BIS-ISOBUTYRONITRILE
CONTINUOUS PROCESS FOR PREPARING STYRENE-BUTADIENE BLOCK-COPOLYMERS WITH HIGH STYRENE CONTENT
PROCESS FOR PRESERVING BACTERIAL ANTIGENES
PROCESS FOR PREPARING HIGHLY SINTERABLE UO2 POWDERS
METHOD AND APPARATUS FOR CHECKINGTHE MECHANISMS GENERATING PROGRAMMED DELAYS
AUTOMATIC APPARATUS FOR MEASURING GAS DENSITY
ELECTRONIC APPARATUS FOR GENERATING AND ANNOUNCING HOURS BY VOCODERIZED SPEECH
MODULE AND PHASE IMPEDANCE METER
