| 摘要 |
PROBLEM TO BE SOLVED: To provide a key body which is difficult to be recognized as a key even with normal attention, to provide a key body which is difficult to be duplicated by a duplication device for normal keys but can be duplicated when proper data for the time of key body preparation is used even if it is lost or the like as another problem, and to provide a key body with which a plurality of locking devices can be locked or unlocked by carrying one key body and which eliminates the need of carrying a plurality of different keys, and the locking device using it.SOLUTION: The key body has an image formed by laser processing inside a transmission member of light having a stereoscopic shape. |
