Well-capping device,申请号US19290330906-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	Well-capping device
摘要
申请公布号	US1786848(A)	申请公布日期	1930.12.30
申请号	US19290330906	申请日期	1929.01.07
申请人	JOHNSON JOSEPH O	发明人	JOHNSON JOSEPH O.
分类号	E21B34/02	主分类号	E21B34/02
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Imaging method based on calculation of topological energy

GRAVITY AIDED CONNECTOR

AUTOMATIC MOTOR-GENERATOR CHARGER

Hand truck incorporating an electric winch powered lifting base

Height-adjustable column

Container and point of purchase display

Seal for dispensing container having dispensing opening

Method and apparatus for manipulating items on a conveyor

METHOD OF ANALYZING ACCELERATOR FOR COPPER ELECTROPLATING

Structure for extreme thermal cycling

Method for Manufacturing Cast Parts

Gas sensor element and method of manufacturing gas sensor element

Outlet check valve

UNIVERSAL WASHING MACHINE OUTLET BOX

MARINE WINDSHIELD AND COCKPIT COVER ATTACHMENT SYSTEM

Material puller assembly

Escutcheon for making a steering wheel spoke appear symmetic about a vertical plane through the steering wheel axis when a vehicle is being steered in a straight line

Nut structure for linear transmission device

Decorative Condensation