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The ornamental design for a mastication monitoring device, as shown and described.
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The mastication monitoring device may be hooked on an ear to measure data of mastication frequency and speed.
The broken lines in the drawings depict portions of the mastication monitoring device that form no part of the claimed design.
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Mar 13 2018 | NARA, SHUNSUKE | Sharp Kabushiki Kaisha | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 045359 | /0673 |
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