Affilication of Author(s):土建与水利学院
Type of Patent:实用新型
Application Number:200920030002.X
Number of Inventors:2
Service Invention or Not:no
Application Date:2009-07-20
Publication Date:2010-03-31
Authorization Date:2009-07-20
Application Date: 2009-07-20
Publication Date: 2010-03-31
Authorization Date: 2009-07-20