US PATENT SUBCLASS 135 / 31
.~ Ribs and stretchers

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

15.1  DF  UMBRELLA {17}
31.~ Ribs and stretchers

DEFINITION

Classification: 135/31

(under subclass 15.1) Devices comprising structures of the body of the rib or stretcher as distinguished from rib-tips and from such modifications as are necessary to form a joint.

SEE OR SEARCH THIS CLASS, SUBCLASS:

33.41, for removable rib-tips.

33.5, for permanently attached rib-tips.