Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Трест По Очистке Сточных Вод "Мосочиствод"filedCriticalТрест По Очистке Сточных Вод "Мосочиствод"
Priority to SU731932869ApriorityCriticalpatent/SU640169A1/en
Application grantedgrantedCritical
Publication of SU640169A1publicationCriticalpatent/SU640169A1/en