A boring machine suitable for boring large holes under ground,申请号GB19530015653-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	A boring machine suitable for boring large holes under ground
摘要
申请公布号	GB743931(A)	申请公布日期	1956.01.25
申请号	GB19530015653	申请日期	1953.06.06
申请人	WOLFGANG EBELING	发明人
分类号	E21B7/28;E21D9/00;E21D9/10	主分类号	E21B7/28
代理机构		代理人
主权项
地址

您可能感兴趣的专利

电脑键盘的按键改良结构

一种医疗保健鞋

全自动防潮保养箱

消烟除尘装置

Autoexpansion electric circuit breaker with insulating gas.

Cutting and winding device for bands.

Supply magazine for stacked sheets.

DISPLAY DEVICE FOR CAR.

A liquid fluorocarbon and a method for producing the same.

Lint burning clothes dryer.

A heat-sensitive recording material.

High energy beam-sensitive copolymer.

Projection television display tube and device having band pass interference filter.

Yarn and method for making it.

Poly(p-phenyleneterephthalamide) yarns of improved fatigue resistance and process for preparation thereof.

Frequency conversion of optical radiation.

Improvements in or relating to a target tracking system.

投嵌两用灯具

小行程连动式气液动阀门装置

一种单旋钮热水器配水阀