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Application filed by Alfons Ing Bejcek, Pavel Ing Janega, Josef Kraft, Helena Ing Slanska, Bohuslav Ing SlanskyfiledCriticalAlfons Ing Bejcek
Priority to CS831048ApriorityCriticalpatent/CS232070B1/en
Publication of CS104883A1publicationCriticalpatent/CS104883A1/en
Publication of CS232070B1publicationCriticalpatent/CS232070B1/en