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Application filed by Drahomir Ing Csc Sokol, Blaha Jaromir, Antonin Ing Csc Malypetr, Antonin Dipl Tech StumrfiledCriticalDrahomir Ing Csc Sokol
Priority to CS838902ApriorityCriticalpatent/CS239127B1/en
Publication of CS890283A1publicationCriticalpatent/CS890283A1/en
Publication of CS239127B1publicationCriticalpatent/CS239127B1/en