Bottom tubing plug for oil wells,申请号US19370140551-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	Bottom tubing plug for oil wells
摘要
申请公布号	US2106996(A)	申请公布日期	1938.02.01
申请号	US19370140551	申请日期	1937.05.03
申请人	EDWARDS WILLIAM K	发明人	EDWARDS WILLIAM K.
分类号	E21B21/10	主分类号	E21B21/10
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Complex formulation comprising lercanidipine hydrochloride and valsartan and method for the preparation thereof

Airlock comprising a lighting device

Grinding device of vertical grinder

Parallel fed well antenna array for increased heavy oil recovery

ncRNA and uses thereof

Ophthalmic lens with multiple phase plates

Method and apparatus for wellbore perforation

Pharmaceutical compositions with resistance to soluble CEA

Isolated polynucleotides expressing or modulating microRNAs or targets of same, transgenic plants comprising same and uses thereof in improving nitrogen use efficiency, abiotic stress tolerance, biomass, vigor or yield of a plant

Heat pump system

System and method of dynamic regulation of real power to a load

Dual sided connector block

Hydrocarbon compound synthesis reaction unit and operating method thereof

Adaptive drive control for milling machine

Removing vibration noise from multicomponent streamer measurements

Vascular access device chamber venting

Disposable injector comprising at least one draw hook and a sliding wedge-type gear for unlocking a locking element

Method and reactor for performing Fischer-Tropsch synthesis

Mobile communications system, base station apparatus, user apparatus, and method