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Application filed by Lopata Vaclav, Haumer Jaroslav, Karel Prochazka, Jiri Kepl, Vratislav Ing Bendl, Jaroslav Ing Enes, Bohumil Ing AuerswaldfiledCriticalLopata Vaclav
Priority to CS852516ApriorityCriticalpatent/CS255564B1/cs
Publication of CS251685A1publicationCriticalpatent/CS251685A1/cs
Publication of CS255564B1publicationCriticalpatent/CS255564B1/cs