US PATENT SUBCLASS 108 / 53.1
.~ Stacking

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

51.11  DF  INDUSTRIAL PLATFORM {20}
53.1.~ Stacking {2}
53.3  DF  .~.~> Nesting
53.5  DF  .~.~> Tiering

DEFINITION

Classification: 108/53.1

(under subclass 51.11) Device wherein one device is provided with means which may cooperate with a second similar device whereby a plurality of said devices may be placed one upon the other in a stacked relationship.