露天钻机铰接式钻架举升变幅机构

Release time:2016-04-26

Affilication of Author(s):中南大学

School Sign:1

Patent Applicant:中南大学;？湖南山河智能机械股份有限

Disigner of the Invention:何清华;？赵宏强;？谢习华

Type of Patent:Utility models

State of Patent:Authorized patents

Application Number:200520051531.X

Authorization number:CN2858926

Service Invention or Not:yes

Application Date:2005-07-27

Authorization Date:2007-01-17

First Author:何清华