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Application filed by Josef Ing Prokes, Frantisek JandafiledCriticalJosef Ing Prokes
Priority to CS815551ApriorityCriticalpatent/CS232415B1/cs
Publication of CS555181A1publicationCriticalpatent/CS555181A1/cs
Publication of CS232415B1publicationCriticalpatent/CS232415B1/cs