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Inventor
YANG KEUN YUL
KR
2 patents
Patents
2 patents
US11618488B2
Apr 4, 2023
Foldable container and apparatus for folding and unfolding the same
KOREA RAILROAD RES INSTITUTE
5 citations
78
US10787311B2
Sep 29, 2020
Collapsible container and apparatus for opening and closing the same
KOREA RAILROAD RES INSTITUTE
0 citations
45