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Photo module with single mode and multimode functionality
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Bidet having two cleaning device to the front left and right
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Toothpaste-ball made of conventional toothpaste and toothpaste filled with toothpaste-ball
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Natural ventilation apparatus for windows of improve thermal performance by using air layer
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Natural ventilation apparatus for windows of improve thermal performance by using air layer
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Ventilation equipment for window
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The system of ventilation using heat load for the dwelling unit
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The system of ventilation using heating load & cooling load for the dwelling unit
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A system for indoor ventilation using range hood and ventilation fan in bathroom
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Badge for self-protection
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