US PATENT SUBCLASS 135 / 157
.~.~ Parallelogram type

Current as of: June, 1999
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135 /   HD   TENT, CANOPY, UMBRELLA, OR CANE

87  DF  PORTABLE SHELTER (I.E., TENT OR CANOPY) {18}
121  DF  .~ Framework {9}
157.~.~ Parallelogram type {1}
158  DF  .~.~.~> Upwardly extending roof structure {2}

DEFINITION

Classification: 135/157

Parallelogram type:

(under subclass 121) Framework in which the members take the form of a quadrilateral having opposite pairs of members parallel to each other.