Float plug and guide for well casings,申请号US19280272053-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	Float plug and guide for well casings
摘要
申请公布号	US1811885(A)	申请公布日期	1931.06.30
申请号	US19280272053	申请日期	1928.04.23
申请人	THE NATIONAL SUPPLY COMPANY	发明人	HILL ROWLAND F.
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

Port aggregation protocol

Optical apparatus and method for producing the same

Dual damascene interconnect structure with reduced parasitic capacitance

Apparatus for separating molecules

Oxime amides and hydrazone amides having fungicidal activity

Steep pitch helix packer

Tracks for all terrain vehicles

Hosta plant named Paradise Joyce'

Azalea plant named Conler'

Method for inspecting liquid filled pipes using magnetostrictive sensors

Direct reduction method and rotary hearth furnace

Bonding pad structure of semiconductor device

Secondary battery cell protection circuit

Method for improving thickness uniformity of deposited ozone-TEOS silicate glass layers

Automatic photobooth with electronic imaging camera

Telephone line interface architecture using ringer inputs for caller ID data

Interconnect traffic tracking

Semiconductor device and method for production thereof

Semiconductor integrated circuit for low power and high speed operation

Semiconductor module and heat sink used in such module