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Application filed by Josef Ing Pastrnak, Belunek Bohumir, Jaroslav Ing Tyrlik, Sava Kubin, Jiri KostalfiledCriticalJosef Ing Pastrnak
Priority to CS841058ApriorityCriticalpatent/CS238532B1/en
Publication of CS105884A1publicationCriticalpatent/CS105884A1/en
Publication of CS238532B1publicationCriticalpatent/CS238532B1/en