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Application filed by Laszlo Barta, Arpad Bertalan, Gyula Budai, Janos Goetz, Laszlo Harmat, Jozsef Kovacs, Zoltan Suedi, Gyoergy Vamos, G Bela WenzelfiledCriticalLaszlo Barta
Priority to HU402591ApriorityCriticalpatent/HU209504B/en
Publication of HU914025D0publicationCriticalpatent/HU914025D0/en
Publication of HU209504BpublicationCriticalpatent/HU209504B/en