| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an inexpensive safety system and a safety method making it difficult to distinguish a real safety device from a dummy safety device from their appearances and having high security effect. SOLUTION: The dummy safety device 1' provided with at least one of the same shape, the same dimension, the same luster, and the same functional movement as the real safety device 1 provided with normal security effect is provided for the real safety device 1. Preferably, the same company name as a manufacturing company of the real safety device is displayed at the same place as the safety device on an outer face of the dummy safety device. At least one dummy safety device 1' may be arranged or each one of the dummy safety device 1' and the real safety device 1 may be arranged in a safety region.</p> |
