Process for cementing oil wells,申请号US19390309899-传众专利搜索

首页产品黄页商标征信

会员服务注册登录

法人/股东/高管

发明名称	Process for cementing oil wells
摘要
申请公布号	US2285302(A)	申请公布日期	1942.06.02
申请号	US19390309899	申请日期	1939.12.18
申请人	E. I. DU PONT DE NEMOURS & COMPANY	发明人	PATTERSON GORDON D.
分类号	C04B28/02	主分类号	C04B28/02
代理机构		代理人
主权项
地址

您可能感兴趣的专利

DISPOSITIVO DI AGGANCIO E SUPPORTO DI BACCHETTE SOSTENENTI TENDE, IN PARTICOLARE APPLICABILE SU INFISSI METALLICI

Dispenser cap for toothpaste and the like

PROCESS FOR THE CYCLIZATION OF ORTHOBENZOYL BENZOIC ACID

ENGINE CONTROL SYSTEM FOR VEHICLE

DEPOSITING THIN CVD LAYER ON SUBSTRATE

DRY DEVELOPING METHOD OF RESIST FILM AND DEVICE THEREOF

PROCESS FOR PREPARING ISOHEXIDE NUCLEOSIDE

FORMING METHOD FOR PHOTORESIST ON SEMICONDUCTOR

FINDER DEVICE FOR AUTO-FOCUS CAMERA WITH ZOOM FUNCTION

SPEED CONTROL METHOD AND DEVICE

METHOD OF FORMING SOLDER COATING TO METALLIZED MATERIAL

METHOD AND APPARATUS FOR FILTERING GASEOUS OR LIQUID DISPERSION SYSTEM

OIL PASSAGE CONSTRUCTION IN AUTOMATIC TRANSMISSION

OPTICAL WAVELENGTH FILTER DEVICE

SUPERCONDUCTING ARRAY DISPLAY DEVICE

PRODUCTION OF IMIDAZOLE DERIVATIVE

VORTEX PATCH ELECTRODE DEVICE FOR DEFIBRILLATION AND CARDIOVERSION OF HEART

LIQUID CRYSTAL DISPLAY DEVICE

FILE RETRIEVAL METHOD FROM ROTARY-DISK STORAGE DEVICE