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Application filed by Josef Riha, Ilja KrejcifiledCriticalJosef Riha
Priority to CS638375ApriorityCriticalpatent/CS183171B1/cs
Publication of CS183171B1publicationCriticalpatent/CS183171B1/cs
CS638375A1975-09-221975-09-22Concrete element, particularly a concrete structure or a prefabricated building unit and method of producing thereof
CS183171B1
(en)