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Application filed by Matula Jan, Frantisek Ing Pekarek, Novotny Stanislav, Jiri Ing Dengl, Emil Ing Csc DzierzafiledCriticalMatula Jan
Priority to CS844385ApriorityCriticalpatent/CS239243B1/cs
Publication of CS438584A1publicationCriticalpatent/CS438584A1/cs
Publication of CS239243B1publicationCriticalpatent/CS239243B1/cs