| 摘要 |
PROBLEM TO BE SOLVED: To improve an effect of a crime prevention buzzer by improving handleability in an emergency, increasing crime preventing effect as well as awareness. SOLUTION: The crime prevention buzzer is composed of a buzzer part A (a fixed part) making a sound independently and a buzzer B (a part to be thrown) and both switches are turned off when the both are combined and turned on when separated. COPYRIGHT: (C)2008,JPO&INPIT
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