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Inventor
Huang ya-fen
TW
2 patents
Patents
2 patents
US11197516B2
Dec 14, 2021
Shoes capable of adjusting heel height
CHIANG TSUNG JU
1 citations
53
US10645997B2
May 12, 2020
Shoe capable of changing shoe types
CHIANG TSUNG JU
0 citations
32