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Application filed by Alfred Runa, Frantisek Huba, Ludovit Brezula, Milos Revus, Jan Sventek, Vlastimil KabesfiledCriticalAlfred Runa
Priority to CS763075ApriorityCriticalpatent/CS178987B1/en
Publication of CS178987B1publicationCriticalpatent/CS178987B1/en
CS763075A1975-11-121975-11-12Method of production of semisolid petroleum asphalts with harder gradation from sulphur-paraffinic crude oils
CS178987B1
(en)