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Priority claimed from DK367980Aexternal-prioritypatent/DK367980A/da
Priority claimed from DK347281Aexternal-prioritypatent/DK149428C/da
Priority claimed from DK367081Aexternal-prioritypatent/DK367081A/da
Application filed by Dansk Eternit-Fabrik A/SfiledCriticalDansk Eternit-Fabrik A/S
Priority claimed from EP19810303957external-prioritypatent/EP0047158B2/de
Application grantedgrantedCritical
Publication of ATE6768T1publicationCriticalpatent/ATE6768T1/de