US PATENT SUBCLASS 441 / 30
.~ Inflatable

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

1  DF  BUOY {6}
30.~ Inflatable {1}
31  DF  .~.~> Having chemical reactor to produce gas

DEFINITION

Classification: 441/30

Inflatable:

(under subclass 1) Buoy wherein the body of the buoy is expanded from a collapsed position by a gaseous medium.