US PATENT SUBCLASS 108 / 10
.~.~.~ Vertically adjustable axis

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

1  DF  TILTABLE SURFACES {5}
6  DF  .~ Pivotally adjustable about horizontal axis {3}
9  DF  .~.~ Surface adjusting link spaced from axis {1}
10.~.~.~ Vertically adjustable axis

DEFINITION

Classification: 108/10

(under subclass 9) Device wherein the tilt axis may be retained at various heights.