US PATENT SUBCLASS 108 / 159
.~.~ Surface vertically removable, horizontally immovable

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

153.1  DF  WITH SEPARABLE COMPONENTS {7}
157.1  DF  .~ Surface separable from support entity {12}
159.~.~ Surface vertically removable, horizontally immovable

DEFINITION

Classification: 108/159

(under subclass 157.1) Device having means whereby the surface is removable from the support in a direction perpendicular to the plane of the surface, which means prevents lateral movement of the surface relative to the support.