Toothpaste cover for quantitatively extruding toothpaste
LU JIACHEN, SHEN FENGQIN, WEI ZHIQIANG, ZHANG QIUQIN, DING YAN, GENG ZHENWEI, QIAN CHANGJUN, XU GUANGJIE, ZHOU RUIXIANG, XUE TENGFEI, SHEN KOUQIN
Year of Publication 21.05.2019
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Year of Publication 21.05.2019
Patent