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Inventor
ZHENG AIMEE
US
2 patents
Patents
2 patents
US10619273B2
Apr 14, 2020
Interchangeable knitting needles with secure connection
ZHENG LIYUN
5 citations
67
US10443164B1
Oct 15, 2019
Knitting needle with swivel joint
ZHENG LIYUN
6 citations
67