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Priority claimed from DE4006494Aexternal-prioritypatent/DE4006494C2/en
Priority claimed from DE4009774Aexternal-prioritypatent/DE4009774A1/en
Priority claimed from DE4018855Aexternal-prioritypatent/DE4018855C3/en
Priority claimed from DE4032650Aexternal-prioritypatent/DE4032650A1/en
Application filed by Buderus Heiztechnik GmbhfiledCriticalBuderus Heiztechnik Gmbh
Priority claimed from EP90125412Aexternal-prioritypatent/EP0444308B1/en
Application grantedgrantedCritical
Publication of ATE89910T1publicationCriticalpatent/ATE89910T1/en