Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
B63C11/02—Divers' equipment
B63C11/18—Air supply
B63C11/22—Air supply carried by diver
B63C11/24—Air supply carried by diver in closed circulation
