Affilication of Author(s):齐鲁交通学院
Patent Applicant:zhangjizhe,yaozhanyong,Liang Ming,jianghongguang
Type of Patent:发明
Application Number:201910334389.6
Number of Inventors:4
Service Invention or Not:no
Application Date:2019-04-24
Publication Date:2020-05-12
Authorization Date:2020-05-12