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Application filed by Milan Galica, Bohumir Ing Zelinka, Ladislav Ing NeumanfiledCriticalMilan Galica
Priority to CS876650ApriorityCriticalpatent/CS263081B1/en
Publication of CS665087A1publicationCriticalpatent/CS665087A1/en
Publication of CS263081B1publicationCriticalpatent/CS263081B1/en