box of hand for accordions harmonica in which the valves are contained in the enclosed by bellows

摘要

the present invention relates to a piano case of hand for accordions in which the valve cone contained in the enclosed by bellows.the piano case account ing in word is in a box shape parallelepipeda.closed on the side of the bellows, a back wall, on the inner face (side - bellows) which are deployed common valve patch.while on its external face (side - keyboard) are provided for the usual "soniere", support for the "voices".