Patent ID: 7477737

Claim:
An telephone apparatus having a cover attached to an outside of a structural body of said telephone apparatus, wherein at least a peripheral edge portion of said cover is continuously curved inwards along a side end portion of said structural body, wherein said telephone apparatus comprising: said cover provided with a plurality of ribs protruding at predetermined curved portions on an inner side of said cover, each rib is an integral unit having a first portion and a second portion each including a linear component wherein said linear component of said first portion is provided so as to cross a crease of said curved portion along an orthogonal direction and said linear component of said second portion is provided so as to cross said first portion along an orthogonal direction; and said structural body provided with a plurality of holes at a side end corner portion of said structural body, and each hole has the same shape as said rib and each located at a position corresponding to each of said plurality of ribs for fit-engaging with said rib.