| 摘要 |
PROBLEM TO BE SOLVED: To provide insect proof apparatuses reducing equipment cost or operating expenses and surely and efficiently controlling mosquitoes or flies invading into the interior of a house even when trouble occurs during ultrasonic sound oscillation. SOLUTION: The insect proof apparatuses are designed to control insects by ultrasonic sound. The insect proof apparatuses are characterized as being mounted in an opposite state in an opening of the house. COPYRIGHT: (C)2006,JPO&NCIPI
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