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Individual
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Individual
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Priority to ES81982ApriorityCriticalpatent/ES81982A1/en
Publication of ES81982A1publicationCriticalpatent/ES81982A1/en
ES81982A1922-06-121922-06-12
Procedure for the construction of reinforced concrete without using formwork, falsework or scaffolding.
ExpiredES81982A1
(en)