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Priority claimed from FR7142221Aexternal-prioritypatent/FR2161442A5/fr
Application filed by Saint-Gobain IndfiledCriticalSaint-Gobain Ind
Priority to DK274876ApriorityCriticalpatent/DK140178B/da
Publication of DK274876ApublicationCriticalpatent/DK274876A/da
Publication of DK140178BpublicationCriticalpatent/DK140178B/da
Application grantedgrantedCritical
Publication of DK140178CpublicationCriticalpatent/DK140178C/da