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Priority claimed from FR8114060Aexternal-prioritypatent/FR2509716A1/fr
Priority claimed from FR8201695Aexternal-prioritypatent/FR2520726B1/fr
Application filed by Saint Gobain IsoverfiledCriticalSaint Gobain Isover
Priority claimed from EP82401327Aexternal-prioritypatent/EP0070772B1/de
Application grantedgrantedCritical
Publication of ATE13282T1publicationCriticalpatent/ATE13282T1/de