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Magic Keys / key

Magic Keys
Magic Keys

This idea is to combine the functions of a single key and a number lock.
The shape of the key is changed when you rotate the number gears on
it. There are three sections of this key, and each number gear controls
one section of the structure of this key.

Therefore, the key is only suitable for the password you switch when you
need to unlock the door.


National Cheng Kung University

National Cheng Kung University
Tainan, Taiwan