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Application filed by Vaclav Ingi Csc Landa, Ludvik Ing NemecfiledCriticalVaclav Ingi Csc Landa
Priority to CS868042ApriorityCriticalpatent/CS258895B1/en
Publication of CS804286A1publicationCriticalpatent/CS804286A1/en
Publication of CS258895B1publicationCriticalpatent/CS258895B1/en