Mask size gauge
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United States of America Patent
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Nov 15, 2022
Grant Date -
Dec 3, 2020
app pub date -
May 15, 2020
filing date -
May 27, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A mask size gauge for selecting a size of a mask in accordance with a distance in a height direction between an upper reference part in an upper portion of a face of a wearer, and a lower reference part in a lower portion, includes: a reference position indicating portion indicating that the reference position indicating portion is to be placed at a height position of the upper reference part on an outer lateral side of an eye of the wearer; and a size indicating portion that is located at a position which is closer to a middle of the face than the reference position indicating portion, and that indicates the size of the mask according to a height position of the lower reference part.
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