Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B63
SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
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B63B
SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
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32/00
Water sports boards; Accessories therefor
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B63B32/50
Boards characterised by their constructional features
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B63B32/56
Boards convertible into vessels or other types of water sports boards, e.g. into sailboats, canoes or water-cycles
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