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Application filed by Fuchs Petr, Alexandr Ing Csc Gruenwald, Kubicka Rudolf, Josef DrazskyfiledCriticalFuchs Petr
Priority to CS83520ApriorityCriticalpatent/CS238741B1/en
Publication of CS52083A1publicationCriticalpatent/CS52083A1/en
Publication of CS238741B1publicationCriticalpatent/CS238741B1/en