US PATENT SUBCLASS 135 / 159
.~.~.~.~ Having central hub

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  DF  .~.~ Parallelogram type {1}
158  DF  .~.~.~ Upwardly extending roof structure {2}
159.~.~.~.~ Having central hub

DEFINITION

Classification: 135/159

Having central hub:

(under subclass 158) Roof structure wherein the frame sections meet at a single connector.