US PATENT SUBCLASS 229 / 111
.~.~ Trapezium-shaped

Current as of: June, 1999
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229 /   HD   ENVELOPES, WRAPPERS, AND PAPERBOARD BOXES

100  DF  PAPERBOARD BOX {54}
108  DF  .~ Including a polygonal, nonrectangular wall {6}
111.~.~ Trapezium-shaped

DEFINITION

Classification: 229/111

Trapezium-shaped:

(under subclass 108) Subject matter wherein the edges of the wall form a quadrilateral having only two parallel sides.

(1) Note. A quadrilateral is a polygon having exactly four sides. [figure]