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一种收集乒乓球的装置

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Affilication of Author(s):环境科学与工程学院

Patent Coverage:国内

School Sign:第一单位

Type of Patent:实用专利

Application Number:201621237609.1

Service Invention or Not:yes

Application Date:2016-11-18

Publication Date:2017-05-24

First Author:李凤英

Pre One:一片式膏体分装管