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2019
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Invention
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Hook member and tension spring. [Problems] Objects include providing a hook member that can be ea... |
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2016
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Invention
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Ventilation device. In this ventilation device provided with a fireproof function, an elongated b... |
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2015
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Invention
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Ventilation device. A device body 10 of a ventilation device comprises an inside first main wall ... |
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2014
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Invention
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Ventilation device. The ventilation device (2) is provided with a device body (10), a moving plat... |
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2012
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Invention
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Double window. Provided is a double window capable of automatically adjusting the amount of venti... |
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Invention
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Ventilation device. A device body (2) is provided with a cam block (10). The cam block (10) is pr... |
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Invention
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Ventilation device. An operation plate (31) for the automatic opening and closing of a ventilatio... |
