Structures arranged underneath buildings, e.g. air-raid shelters

Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate > against air-raid or other war-like actions > Structures arranged in, or forming part of, buildings > Structures arranged underneath buildings, e.g. air-raid shelters

Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate (foundation aspects E02D) > against air-raid or other war-like actions > Structures arranged in or forming part of buildings > Structures arranged underneath buildings, e.g. air-raid shelters