US PATENT SUBCLASS 108 / 57.15
.~ Including a roller or track contacting area

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

51.11  DF  INDUSTRIAL PLATFORM {20}
57.15.~ Including a roller or track contacting area

DEFINITION

Classification: 108/57.15

Including a roller or track contacting area:

(under subclass 57.11) Device provided with a wheel or a means for allowing the support surface to be positioned on a railing system.