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First Author:yushanjuan

Disigner of the Invention:黄尚诚,jiazhenyuan,anlibang,yujianyuan,wang dianlong,姚南∴,郭丽沙,高嫒,张国文,钱有生

Application Number:CN93217783.2

Authorization Date:1993-07-08

Authorization number:CN2164542

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