US PATENT SUBCLASS 108 / 57.18
.~.~ Corrugated or grooved support members

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

51.11  DF  INDUSTRIAL PLATFORM {20}
57.17  DF  .~ Load-contacting surface having parallel spaced-apart support members {3}
57.18.~.~ Corrugated or grooved support members

DEFINITION

Classification: 108/57.18

Corrugated or grooved support members:

(under subclass 57.17) Device wherein the load-contacting elements are provided with either alternating grooves and ridges or an elongated depression.