PL281985A1 - Pulse-type controller circuit arrangement in particular for use in controlling operation of biological sewage digestion tanks
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Pulse-type controller circuit arrangement in particular for use in controlling operation of biological sewage digestion tanks
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Application filed by Politechnika Lodzka, Ichem Sp Z O O Osrodek BadawczfiledCriticalPolitechnika Lodzka
Priority to PL28198589ApriorityCriticalpatent/PL160935B1/en
Publication of PL281985A1publicationCriticalpatent/PL281985A1/en
Publication of PL160935B1publicationCriticalpatent/PL160935B1/en
PL28198589A1989-10-231989-10-23Pulse-type controller circuit arrangement in particular for use in controlling operation of biological sewage digestion tanks
PL160935B1
(en)