Rosenberg, Klein & Lee
Office desk with multiple trays pivotally connected thereto
 A desk includes two inverted U-shaped frames connected with each other and each frame has two legs connected by a bar. A top supported on the two bars of the two frames. Each leg of the two frames has a tube connected to a distal end thereof and each tube has an open end so as to be pivotally connected to an auxiliary device such as a document tray or a support platform. 
A A
A47B A47B
inventional additional
Chien-Kuo
Chang