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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7/00
Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
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E04H7/22
Containers for fluent solids, e.g. silos, bunkers; Supports therefor
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E04H7/24
Constructions, with or without perforated walls, depending on the use of specified materials
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