Language : English
程健维

Patents

一种提高破碎煤体中瓦斯钻孔抽采浓度的方法

Hits:

School Sign:第一单位

Disigner of the Invention:施宇,郝明跃,王文滨,张加齐,赵刚,祁畅,张兆龙

Type of Patent:国内

State of Patent:专利授权

Application Number:201811501563.3

Number of Inventors:8

Service Invention or Not:no

Application Date:2018-12-10

Authorization Date:2020-08-07

First Author:chengjianwei