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Application filed by Wolfgang Dipl Ing Lehmann, Horst Kaden, Horst Waechtler, Miroslav Sasak, Smejkal Vilem, Roland Ing Schubert, Zatopek FrantisekfiledCriticalWolfgang Dipl Ing Lehmann
Priority to CS846593ApriorityCriticalpatent/CS242447B1/en
Publication of CS659384A1publicationCriticalpatent/CS659384A1/en
Publication of CS242447B1publicationCriticalpatent/CS242447B1/en