US PATENT SUBCLASS 441 / 6
.~ Marker buoy

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

1  DF  BUOY {6}
6.~ Marker buoy {2}
7  DF  .~.~> Having means to release buoy upon submergence {3}
11  DF  .~.~> With signalling device {4}

DEFINITION

Classification: 441/6

Marker buoy:

(under subclass 1) Buoy adapted to be anchored to a vessel or location on or under the waters surface to draw attention to the vessel or location.

SEE OR SEARCH CLASS

116, Signals and Indicators,

107, for audible signalling devices which can be placed on a

buoy.