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Application filed by Josef Augsten, Richard Maurer, Ulrich Mohr, Heinz Ohmann, Joerg Sauer, Kurt Spickermann, Dieter WallerfiledCriticalJosef Augsten
Priority to DD19522376ApriorityCriticalpatent/DD131104A1/de
Publication of DD131104A1publicationCriticalpatent/DD131104A1/de