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Individual
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Individual
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Priority to ES147222ApriorityCriticalpatent/ES147222A1/en
Publication of ES147222A1publicationCriticalpatent/ES147222A1/en
ES147222A1939-11-061939-11-06
A method of manufacturing reinforced concrete plates applied to the construction of roofs, floors and partitions.
ExpiredES147222A1
(en)