DRILLING APPARATUS FOR ROTARY DRILLING,申请号USD3613804-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	DRILLING APPARATUS FOR ROTARY DRILLING
摘要
申请公布号	US3613804(A)	申请公布日期	1971.10.19
申请号	USD3613804	申请日期	1969.09.18
申请人	ATLAS COPCO AB.	发明人	NILS GUNNAR JONSSON
分类号	E21B3/04;E21B3/02;E21B19/08;E21B19/086;(IPC1-7):E21C1/10	主分类号	E21B3/04
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Improvements in or relating to ammunition projectile fuzes

Improvements in or relating to containers or receptacles

Combination garment

Improvements in and relating to horse shoes

Improved ties for cavity wall buildings

Improvements in or relating to apparatus for the manufacture of potentiometers and rheostats

Briquet-allumoir électrique

Perfectionnements aux lampes

Installation pour recuire rapidement la fonte malléable

Dispositif à courant porteur pour communication secrète ou supplémentaire

Installation pour la soudure électrique

Perfectionnements apportés à la construction des planchers pour bâtiments

Improvements in or relating to temperature regulating devices

Improvement in refractories

Improvements in or relating to time-controlled switches or other relays

Electrical pulse generator

Engine mountings

Improvements in and relating to apparatus for measuring or checking dimensions by pneumatic micrometry

Improvements in or relating to sensing antenna couplings for radio direction finders

Improvement in stranded wire structures for apparatus towing