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Affilication of Author(s):中国科学技术大学

Disigner of the Invention:duhuasheng,huhongzhuan,zhaichao,zhubing,石德秀

Patent description:实用新型

Application Number:97211765.2

Number of Inventors:6

Service Invention or Not:no

Publication Date:1998-09-16

Authorization Date:1998-09-16

First Author:xingxiaozheng