Affilication of Author(s):

中国科学技术大学

Disigner of the Invention:

yehong,许勤堂,奚益明

Patent description:

实用新型

Application Number:

01237222.6

Number of Inventors:

4

Service Invention or Not:

no

Publication Date:

2002-01-23

Authorization Date:

2002-01-23

First Author:

gexinshi