| CPC G06F 1/1681 (2013.01) [G06F 1/1616 (2013.01); G06F 1/1679 (2013.01)] | 7 Claims | 

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               1. An electronic device comprising: 
            a first housing including a display; 
                a second housing including an operation unit; and 
                a rotation unit configured to connect the first housing to the second housing, and rotate the first housing relative to the second housing, 
                wherein 
                the second housing includes at least one rotation regulation portion that protrudes from a bottom face of the second housing and is configured to regulate rotation of the first housing with respect to the second housing, 
                the at least one rotation regulation portion includes an elastic member configured to rotate back and forth between a first mode and a second mode with different states of protrusion from the bottom face of the second housing, the elastic member being contactable with the first housing, and 
                the at least one rotation regulation portion is configured to, in the first mode, regulate rotation of the first housing with respect to the second housing in a first rotation range, and in the second mode, regulate rotation of the first housing with respect to the second housing in a second rotation range where the first housing is rotated with respect to the second housing to a greater extent than in the first rotation range. 
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