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Priority claimed from DE19838324933external-prioritypatent/DE8324933U1/en
Priority claimed from DE19848420197external-prioritypatent/DE8420197U1/en
Application filed by Viessmann Werke KgfiledCriticalViessmann Werke Kg
Priority claimed from EP84110333Aexternal-prioritypatent/EP0141944B1/en
Application grantedgrantedCritical
Publication of ATE38714T1publicationCriticalpatent/ATE38714T1/en