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Priority claimed from CA000375388Aexternal-prioritypatent/CA1169230A/en
Application filed by Societe Nationale De L'amiantefiledCriticalSociete Nationale De L'amiante
Priority claimed from EP19810103916external-prioritypatent/EP0040825B1/de
Application grantedgrantedCritical
Publication of ATE6494T1publicationCriticalpatent/ATE6494T1/de