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Application filed by Piller Bohumil, Rostislav Prochazka, Kramplova Milada, Josef Ing Javorsky, Alexandr V Carkovskij, Vladimir N Filatov, Alexandr V Kovarskij, Larisa I CarkovskajafiledCriticalPiller Bohumil
Priority to CS858399ApriorityCriticalpatent/CS253133B1/cs
Publication of CS839985A1publicationCriticalpatent/CS839985A1/cs
Publication of CS253133B1publicationCriticalpatent/CS253133B1/cs