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2021
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Invention
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Window-type ventilation device. A window-type ventilation device is disclosed. A window-type vent... |
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Invention
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Window-type ventilator. A window-type ventilator is disclosed. According to the window-type venti... |
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Invention
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Window-type ventilator. A window-type ventilator is disclosed. The window-type ventilator accordi... |
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Invention
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Injection-molded outdoor rainwater shield for window- and door-type ventilation device. The prese... |
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Invention
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Flow guide for noise reduction and device for reducing noise. A purpose of the present invention ... |
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2020
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Invention
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Household ventilation apparatus capable of adjusting air velocity in multiple stages.
Proposed i... |
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Invention
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Household ventilation apparatus capable of adjusting air velocity in multiple stages. The present... |
