Patent attributes
An upper cover attaching concavity and a lower cover attaching concavity are respectively formed on rear surfaces of an upper housing and a lower housing of a non-limiting example portable game apparatus, and hook recesses each having a portion existing beneath an area are formed on a flat surface of the upper cover attaching concavity and fitting recesses are formed on side surfaces. Hook recesses each having a portion existing beneath an area are formed on a flat surface of the lower cover attaching concavity and fitting recesses are formed on side surfaces. Hooks are inserted into the hook recesses and fitting projections fit into the fitting recesses, whereby an upper cover is attached to the upper cover attaching concavity. Hooks are inserted into the hook recesses and fitting projections fit into the fitting recesses, whereby a lower cover is attached to the lower cover attaching concavity.