US PATENT SUBCLASS 108 / 74
.~.~.~.~.~ Also moves principal surface

Current as of: June, 1999
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108 /   HD   HORIZONTALLY SUPPORTED PLANAR SURFACES

59  DF  PLURAL RELATED HORIZONTAL SURFACES {11}
65  DF  .~ Coplanar extension surface {4}
69  DF  .~.~ End leaf {4}
71  DF  .~.~.~ Elevating mechanism {2}
73  DF  .~.~.~.~ Cam and slide {2}
74.~.~.~.~.~ Also moves principal surface

DEFINITION

Classification: 108/74

(under subclass 73) Device in which the main surface is moved out of the path of the leaf, or panel, by and as the latter moves between extended and nonextended positions.