| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-slip structure for a mobile phone in which serrations on the sides of a case main body extends up to sides of a battery case main body so as to eliminate non-slip not been applied to a portion equivalent to a thickness of the battery case main body so as to enable a user to grip the mobile phone in the palm. SOLUTION: In the comparatively small-sized paper-tablet shaped mobile phone with a structure of a case containing a phone function sending/receiving a radio wave to send/receive information, the non-slip structure of the mobile phone is adopted that is characterized in that the non-slip with the similar pattern to that of the non-slip applied to the sides of the case main body is applied to sides of the battery case main body mounted by using part of the case main body in the width direction.
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