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 drilling apparatus
摘要
申请公布号
US1812721(A)
申请公布日期
1931.06.30
申请号
US19270204446
申请日期
1927.07.09
申请人
SHELDON MACHINERY CORPORATION
发明人
SHELDON WALDO
分类号
E21B3/04;E21B19/16
主分类号
E21B3/04
代理机构
代理人
主权项
地址
您可能感兴趣的专利
DEPOT FORMULATIONS OF ARYLHETEROCYCLIC ACTIVE AGENTS IN THE FORM OF A SUSPENSION
Interactive automatic external defibrillator providing attachment guidance to operator
METHOD AND APPARATUS FOR FAST CELP IF PARAMETER MAPPING
MEDICAL SMALL-BORE TUBING SYSTEM AND KIT
METHOD FOR MANUFACTURING RESIN SUBSTRATE AND METHOD FOR MANUFACTURING MULTILAYER RESIN SUBSTRATE
SEPARATORE DI PARTICELLE
RUBINETTO A PASSAGGIO DIRETTO PER L'EROGAZIONE DI BEVANDE DOTATO DI DI SPOSITIVI MIGLIORATI DI ARRESTO DELLA MANIGLIA DI MANOVRA
ASPIRATORE PORTATILE CON PROLUNGA INCORPORATA ALLUNGABILE OLTRE 3 METR I IDONEO ALLA CATTURA DI PICCOLI INSETTI (ES.ZANZARE)E ALLA ASPIRAZIONE DI RAGNATELE
SPACCALEGNA.
DISPOSITIVO DI REGOLAZIONE DELLA POSIZIONE DEL COPRI-CILINDRO PER SERR ATURE
RESIN COMPOSITION AND MOLDED OBJECT FORMED FROM THE RESIN COMPOSITION
TREATMENT OF FLUIDS
PROGNOSTIC HEALTH MONITORING OF FLUIDIC SYSTEMS USING MEMS (MICRO-ELECTROMECHANICAL SYSTEMS)
KUGEL- UND PFANNE-GELENKPROTHESE MIT GERINGEM VERSCHLEISS
ASSAY FOR DETERMINING THE ACTIVITY OF FATTY ACID AMIDE HYDROLASE
AMORPHOUS POLYESTER RESIN COMPOSITION
STORAGE BATTERY DIAGNOSING SYSTEM
METHOD FOR DETERMINING THE MODULUS OF ELASTICITY OF PAPER
HEAT-CURABLE ADHESIVE COMPOSITION
Heat-curable adhesive composition
