Inventor
LEE JAELK
KR2 patents
Patents
2 patentsUS9885445B2Feb 6, 2018
Locking-unlocking structure for guiding forward lifting of lifting body by repeating pushing action
JOUNG WHIDONG9 citations77
US9863575B2Jan 9, 2018
Locking-unlocking structure for stopping lifting body, which is lifted and fallen through repetition of pushing actions, in lifting state and for releasing stopping state of lifting body
JOUNG WHIDONG1 citations45