US PATENT SUBCLASS 441 / 9
.~.~.~ Gas assisted

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


441 /   HD   BUOYS, RAFTS, AND AQUATIC DEVICES

1  DF  BUOY {6}
6  DF  .~ Marker buoy {2}
7  DF  .~.~ Having means to release buoy upon submergence {3}
9.~.~.~ Gas assisted

DEFINITION

Classification: 441/9

Gas assisted:

(under subclass 7) Buoy wherein the release of the buoy is assisted by a gas and wherein the release or generation of the gas is initiated by sinking of the body or vessel.