Ostrolenk, Faber, Gerb & Soffen
Mounting and electrical connection means for operation unit for electric devices
 A number of electric operation components such as tone volume controls of an electric musical instrument are collectively carried by a common chassis preferably manufactured by press stamping which is accompanied by one or more printed circuit base blocks and easily incorporated in a front panel of an electric device. Assembly of the front panel construction on the electric device is remarkably simplified with enhanced precision in said position of the electric operation components on the front panel and reduced use of electric lead wires. 
Nippon Gakki Seizo Kabushiki Kaisha
H H H H H H H H
H05K H05K H05K H05K H05K H05K H05K H05K
additional additional additional additional additional inventional additional inventional
Masashi
Saito