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Priority claimed from DE19803040136external-prioritypatent/DE3040136A1/de
Application filed by Hermann Behr & Sohn Gmbh & Co.filedCriticalHermann Behr & Sohn Gmbh & Co.
Application grantedgrantedCritical
Publication of ATE7364T1publicationCriticalpatent/ATE7364T1/de