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Application filed by Miroslav Ing Stepanek, Stejskal Alois, Havranek Zdenek, Jan Hrdina, Jaroslav Slingr, Frantisek Cada, Borovcova Zelmira, Frantisek Ferkl, Eduard Barta, Jarmila Steklikova, Ladislav NovakfiledCriticalMiroslav Ing Stepanek
Priority to CS856039ApriorityCriticalpatent/CS251379B1/en
Publication of CS603985A1publicationCriticalpatent/CS603985A1/en
Publication of CS251379B1publicationCriticalpatent/CS251379B1/en