First back position pad
TANG QIONG, JI ZHIQIONG, SUN YUTING, MIAO LIBO, LI YANHONG, CHEN LIYING, SONG YANQIONG, CHEN YUANQIU, TANG CHAOHONG, ZHOU LIXIAN
Year of Publication 16.01.2018
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Year of Publication 16.01.2018
Patent