Bacon & Thomas
Computer keyboard with turnable knob
 An improved keyboard structure comprises a base, a pan body, and a top cover. A user is supposed to turn a turnable functional pushbutton to a specified function item, then click the pan body for the computer to execute the related program. 
Shin Jiuh Corp.
G H
G06F H01H
inventional inventional
Chin-Wen
Chou