US PATENT SUBCLASS 441 / 131
.~.~ Annular buoyant member

Current as of: June, 1999
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441 /   HD   BUOYS, RAFTS, AND AQUATIC DEVICES

129  DF  BODY SUPPORTING BUOYANT DEVICE {1}
130  DF  .~ With seat {2}
131.~.~ Annular buoyant member

DEFINITION

Classification: 441/131

Annular buoyant member:

(under subclass 130) Device wherein the buoyancy means is in the form of a ring.