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Application filed by Josef Hudec, Jiri MalekfiledCriticalJosef Hudec
Priority to CS214976ApriorityCriticalpatent/CS184159B1/cs
Publication of CS184159B1publicationCriticalpatent/CS184159B1/cs
CS214976A1976-04-021976-04-02Removal of difficult filterable sludges from biological waste water treatment plant in citric acid production
CS184159B1
(en)