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Sign door locks / Door locks

Sign door locks
Sign door locks

Sometimes we are worried whether we lock the door after rushing out of the house. To prevent this, we suggest "Signkey" design,
which makes it possible that we can check whether we lock the door by seeking a part of the key pushed into a door knob.

University

Hoseo university

Hoseo university
Seoul, North Korea

University

Hoseo university

Hoseo university
Asan, North Korea

Design

Hoseo university

Hoseo university
Seoul, North Korea

youngjin Jang daeun Kim hyungjoo Kang