MASK AND METHOD FOR MAKING SAME
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United States of America Patent
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app pub date -
Jul 4, 2017
filing date -
Jul 29, 2016
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Abstract
A mask includes a plastic layer, a frame, and a plurality of magnetic elements. The plastic layer has a first surface and a second surface, the first surface and the second surface are on two opposite sides of the plastic layer facing away from each other. The plastic layer has a plurality of openings extending through the first surface and the second surface. The frame is on the first surface and covers a periphery of the plastic layer. The magnetic elements protrude from the first surface. Each magnetic element tapers along a direction away from the first surface.
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