US PATENT SUBCLASS 441 / 81
.~ Tossable apertured member (e.g., ring)

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

80  DF  WATER RESCUE OR LIFE PROTECTING APPARATUS {8}
81.~ Tossable apertured member (e.g., ring)

DEFINITION

Classification: 441/81

Tossable apertured member (e.g., ring):

(under subclass 80) Device comprising a buoyant flotation device adapted to be thrown to a person in the water.

(1) Note. The device is usually secured to a rope.