Language : English
Li Zijun

Patents

一种适用于矿山巷道的密闭门装置

Affilication of Author(s):中南大学资源与安全工程学院

School Sign:中南大学

Type of Patent:Invent

State of Patent:Authorized patents

Authorization number:ZL2020 1 0460633.6

Service Invention or Not:yes