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Affilication of Author(s):中国科学技术大学

Disigner of the Invention:翁文国,yanglizhong,dengzhihua,songhu

Patent description:实用新型

Application Number:02263112.7

Number of Inventors:5

Service Invention or Not:no

Publication Date:2003-07-16

Authorization Date:2003-07-16

First Author:fanweicheng