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Application filed by Vaclav Ing Kosan, Frantisek Ing Kuncl, Josef Kotouc, Zdenek KonselfiledCriticalVaclav Ing Kosan
Priority to CS863241ApriorityCriticalpatent/CS263613B1/en
Publication of CS324186A1publicationCriticalpatent/CS324186A1/en
Publication of CS263613B1publicationCriticalpatent/CS263613B1/en