US PATENT SUBCLASS 108 / 63
.~.~ Superposed sections convert to coplanar sections

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

59  DF  PLURAL RELATED HORIZONTAL SURFACES {11}
62  DF  .~ Invertible surface {1}
63.~.~ Superposed sections convert to coplanar sections

DEFINITION

Classification: 108/63

(under subclass 62) Device wherein a portion of the surface is situated above another portion thereof, and is interconnected therewith to move to a horizontally juxtaposed position.