Affilication of Author(s):机械工程学院
Patent Applicant:Cong Hua,yuanquan
Type of Patent:实用新型
Application Number:200820173458.7
Number of Inventors:2
Service Invention or Not:no
Application Date:2008-10-27
Publication Date:2009-08-19
Authorization Date:2009-08-19
Application Date: 2008-10-27
Publication Date: 2009-08-19
Authorization Date: 2009-08-19