US PATENT SUBCLASS 441 / 1
BUOY

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

1BUOY {6}
2  DF  .~> With means to call buoy to surface
3  DF  .~> For mooring a vessel {1}
6  DF  .~> Marker buoy {2}
21  DF  .~> Having means to control attitude or position {3}
30  DF  .~> Inflatable {1}
32  DF  .~> Container type {2}

DEFINITION

Classification: 441/1

BUOY:

(under the class definition) Device comprising a distinctly shaped, anchored device, such as cans, spars, nun, etc., especially adapted to float in water for the purpose of indicating a navigable channel, anchorage, some impediment or hazard to navigation, some object below the surface of the water, to provide a mooring or a support for some object, or to perform some other water related function.