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Application filed by Rudolf Ing Holecek, Jaroslav Men, Vlastimil Vanicek, Manek BretislavfiledCriticalRudolf Ing Holecek
Priority to CS851983ApriorityCriticalpatent/CS246807B1/en
Publication of CS198385A1publicationCriticalpatent/CS198385A1/en
Publication of CS246807B1publicationCriticalpatent/CS246807B1/en