Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B63
SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
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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
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11/00
Equipment for dwelling or working underwater; Means for searching for underwater objects
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B63C11/34
Diving chambers with mechanical link, e.g. cable, to a base
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