Affilication of Author(s):齐鲁交通学院
Patent Applicant:zhangjizhe,yaozhanyong,Liang Ming,jianghongguang
Type of Patent:发明
Application Number:201910493283.0
Number of Inventors:4
Service Invention or Not:no
Application Date:2019-06-06
Publication Date:2020-05-22
Authorization Date:2020-05-22