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ECOLASSE LAURENT
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ECOLASSE LAURENT
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Application filed by ECOLASSE LAURENTfiledCriticalECOLASSE LAURENT
Priority to FR7207122ApriorityCriticalpatent/FR2172928B1/fr
Publication of FR2172928A1publicationCriticalpatent/FR2172928A1/fr
Application grantedgrantedCritical
Publication of FR2172928B1publicationCriticalpatent/FR2172928B1/fr
E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts