Affilication of Author(s):机械工程学院
Patent Applicant:zhouyiqi,tangwei
Type of Patent:实用新型
Application Number:200420039165.1
Number of Inventors:2
Service Invention or Not:no
Application Date:2004-03-19
Publication Date:2005-03-30
Authorization Date:2005-03-30
Application Date: 2004-03-19
Publication Date: 2005-03-30
Authorization Date: 2005-03-30