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
Well tool
摘要
申请公布号
US2248211(A)
申请公布日期
1941.07.08
申请号
US19390258392
申请日期
1939.02.25
申请人
BOB YOUNG
发明人
YOUNG BOB
分类号
E21B33/129
主分类号
E21B33/129
代理机构
代理人
主权项
地址
您可能感兴趣的专利
PROCESSO, APARELHO E SISTEMA PARA PRODUCAO DE PLACAS DE MADEIRA AGLOMERADA E PRODUTOS RESULTANTES
Direct production of polymeric printing plates - using laser beam
Mfg. polyolefines with particle size below 200 microns dia. - from powder of particles below three and a half mm dia. is heated, agglomerated, cooled, crushed and sieved
Reducing the dust content of finely divided polyolefins - by forming a suspension heating, separating, washing and drying
Powder-coated, corrosion resistant metal articles - having directly bonded coating of crosslinkable resin and outer thermoplastic coating applied in one treatment
Filament or mat-winding glass ellipsoidal shapes - by moving winding head and mandrel on trolleys
Affaldsforbrændingsanlæg.
Insecticidt virksomme 0,0-dialkyl-S-phenyl-dithiophosphorsyreestere.
Hurtigkobling.
Fremgangsmåde til fremstilling af L-asparaginase.
SCHUIFKIST VOOR EEN OPGAANDE BETONCONSTRUCTIE
PROCEDE POUR L'OBTENTION DE PHOSPHAZENES POLYMERES CONDENSES
NOUVEAUX COLORANTS DE CUVE
ENSEMBLE DE COMMUTATION POUR SIGNAUX CODES
ENGINE
IMPROVEMENTS IN OR RELATING TO PRESSURE CONTROL VALVES
BIOCIDE
PIGMENTS OF THE 2,4-DIHYDROXYQUINOLINE SERIES
WIRELESS TELECOMMUNICATION SYSTEM FOR USE IN CONFINED SPACES
LIGHT TURRET WITH TWO INTERIOR WEAPONS FOR MILITARY TRANSPORT OF COMBAT MACHINES
