Mask
A mask is provided. The mask according to an exemplary embodiment of the present invention includes: an external layer which forms an external exposed surface when worn; an internal layer which is fixed to one surface of the external layer so that a receiving part having at least one side opened bet...
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Main Author | |
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Format | Patent |
Language | English Korean |
Published |
25.03.2022
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Subjects | |
Online Access | Get full text |
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