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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3/00
Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
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E04H3/10
for meetings, entertainments, or sports
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E04H3/14
Gymnasiums; Other sporting buildings
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