US PATENT SUBCLASS 108 / 147
.~ With force-multiplying means

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

144.11  DF  VERTICALLY ADJUSTABLE {8}
147.~ With force-multiplying means

DEFINITION

Classification: 108/147

(under subclass 144.11) Device in which the surface is lifted or raised by means which employs a mechanical advantage; e.g., gears or hydraulic motors.

SEE OR SEARCH CLASS

248, Supports,

404+, for a vertically adjustable standard-type stand having similar force-multiplying means.