Ostrolenk, Faber, Gerb & Soffen
Worktable
 A workable comprises two pairs of legs, a tabletop, and a pair of support arms. The top end of each pair of legs is pivotally joined by a joint means which further pivotally connects a receiving frame of the tabletop at its upper portion. Each of the receiving frame is provided with a pair of fixtures, the distance between the two fixtures is adjustable by a threaded rod disposed inside the receiving rod. Each of the support arms is pivotally connected to the receiving frame at its top end while its lower end is provided with a pair of dents permitting it to be supported on the forward extended legs by engaging the dents with a locating pin on the legs. When detaching the support arm from the locating pin on the legs, the legs may be folded toward each other and the tabletop may be lifted to form an upright position while closely attach the folded legs. Each of the fixtures included an upper part and a lower part, the lower part is positioned on the receiving frame while the upper part is pivotally connected to the lower part and allow a top board connected thereon to form a upright position when the upper part is sidewardly turned relative to the lower part. 
Y B Y B
Y10T B25B Y10S B25H
additional inventional additional inventional
Cheng W.
Ho