US PATENT SUBCLASS 52 / 729.3
.~.~.~ Corrugated web

Current as of: June, 1999
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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

720.1  DF  SHAFT (I.E., ELONGATED RIGID STRUCTURE) {15}
729.1  DF  .~ I-beam {2}
729.2  DF  .~.~ Compound construction {2}
729.3.~.~.~ Corrugated web

DEFINITION

Classification: 52/729.3

Corrugated web:

(under subclass 729.2) Subject matter wherein the shaft's web is undulant.