108 / | HD | HORIZONTALLY SUPPORTED PLANAR SURFACES |
59 | DF | PLURAL RELATED HORIZONTAL SURFACES {11} |
65 | DF | .~ Coplanar extension surface {4} |
69 | .~.~ End leaf {4} | |
70 | DF | .~.~.~> Surface lowers into coplanar position with leaf |
71 | DF | .~.~.~> Elevating mechanism {2} |
76 | DF | .~.~.~> Elevatable |
77 | DF | .~.~.~> Dropleaf {2} |