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
CASING CENTRALISER
摘要
申请公布号
GB9320845(D0)
申请公布日期
1993.12.01
申请号
GB19930020845
申请日期
1993.10.09
申请人
UWG LIMITED
发明人
分类号
E21B17/10
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
SELF-GRIDDING FLOORING SYSTEM
TURBIDIMETRIC METHOD FOR THE DETERMINATION OF SERUM LIPASE
METHOD AND APPARATUS FOR MAKING INORGANIC WEBS AND STRUCTURES FORMED THEREOF
METHOD FOR DRAWING SAMPLES FROM MATERIAL CONTAINING SOLID INGREDIENTS
PRE-FABRICATED DOME-SHAPED STRUCTURE
CRANKSHAFT PHASING MECHANISM
CLEAN NANOCRYSTALLINE POWDERS AND ARTICLES MADE THEREFROM
ARRANGEMENT FOR COMBATTING INTERSYMBOL INTERFERENCE AND NOISE
FLEXCOMPRESSIONAL ACOUSTIC TRANSDUCER
POLYMERIZATION RETARDER FOR ACRYLIC ACID AND ESTER
MATERIALE BESTAAENDE AV KARBONFORBINDELSER
STRIDSHODE MED EN TANDEMLADNING
Preparation of organoaluminum compounds and linear alcohols derived therefrom
PC STEEL STRANDED WIRE AND MANUFACTURE THEREOF
COMBUSTION CHAMBER OF SWIRL CHAMBER TYPE DIESEL ENGINE
METHOD AND SYSTEM FOR ENCODING AND DECODING VIDEO DATA
Variable length code word decoder for use in digital communication systems
METHOD AND EQUIPMENT FOR STORING INTERMEDIATELY THREAD AT TIME OF RESTARTING
SOLVENT-RESISTANT POLYCARBONATE/POLYESTER BLEND HAVING IMPROVED IMPACT RESISTANCE
PREPARATION OF AROMATIC POLYMER CAPPED WITH REACTIVE TRIAZINE AND INTERMEDIATE USED FOR THE PREPARATION
