Automatic paper perforating, threading and knotting machine and using method thereof
ZHENG YING, ZHU MINJIE, LIU JIANHONG, WEN XIAOJUN, DING JING, YING XIAOCHUN, ZHENG HONGHUA, SANG QI, WU XIDONG, CHEN YINGYING, SU JIANING, XU FANG, CAO YUHUI
Year of Publication 05.02.2021
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Year of Publication 05.02.2021
Patent
Automatic paper punching, threading and knotting machine
ZHENG YING, ZHU MINJIE, LIU JIANHONG, WEN XIAOJUN, DING JING, YING XIAOCHUN, ZHENG HONGHUA, SANG QI, WU XIDONG, CHEN YINGYING, SU JIANING, XU FANG, CAO YUHUI
Year of Publication 03.05.2019
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Year of Publication 03.05.2019
Patent