煤矿井下测压、地面控制的线性调节供水系统

Release time:2019-04-15|Hits:

Affilication of Author(s):机械工程学院

Patent Applicant:Zengcai Wang

Type of Patent:发明

Application Number:200610069391.8

Number of Inventors:1

Service Invention or Not:no

Application Date:2006-10-25

Publication Date:2008-12-24

Authorization Date:2008-12-24