Patent classifications
E
FIXED CONSTRUCTIONS
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E04
BUILDING
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E04H
BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
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9/00
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
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E04H9/02
withstanding earthquake or sinking of ground
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E04H9/021
Bearing, supporting or connecting constructions specially adapted for such buildings
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E04H9/0215
involving active or passive dynamic mass damping systems
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