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Priority claimed from FR7834616Aexternal-prioritypatent/FR2443436B1/en
Priority claimed from DK522679Aexternal-prioritypatent/DK154496C/en
Application filed by Saint GobainfiledCriticalSaint Gobain
Publication of DK290284D0publicationCriticalpatent/DK290284D0/en
Publication of DK290284ApublicationCriticalpatent/DK290284A/en
Publication of DK164002BpublicationCriticalpatent/DK164002B/en
Application grantedgrantedCritical
Publication of DK164002CpublicationCriticalpatent/DK164002C/en