US PATENT SUBCLASS 108 / 57.3
.~.~ One-piece bent sheet metal

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

51.11  DF  INDUSTRIAL PLATFORM {20}
57.29  DF  .~ Having corrugated, grooved, or notched load-contacting surface {1}
57.3.~.~ One-piece bent sheet metal