WINDOW
PROBLEM TO BE SOLVED: To provide a window with a ventilation device, the window being of an excellent design and constructed easily.SOLUTION: A window includes a frame 1, sashes 2a, 2b, a wire screen 3 and a ventilation device 4, where the sashes 2a, 2b are slid along the frame 1 to be opened and cl...
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Format: | Patent |
Sprache: | eng ; jpn |
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