Affilication of Author(s):齐鲁交通学院
Patent Applicant:songxiuguang,sunrenjuan,gezhi,guanyanhua,zhanghongbo
Type of Patent:发明
Application Number:2019104468121
Number of Inventors:5
Service Invention or Not:no
Application Date:2019-05-27
Publication Date:2020-03-10
Authorization Date:2020-03-10
Application Date: 2019-05-27
Publication Date: 2020-03-10
Authorization Date: 2020-03-10