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Priority to PL32633098ApriorityCriticalpatent/PL326330A1/en
Publication of PL326330A1publicationCriticalpatent/PL326330A1/en
PL32633098A1998-05-151998-05-15Method of transferring heat for heating medium at a heat exchanger, at central heating water boilers in particular
PL326330A1
(en)
Method of effectuating heat exchange between flue gas and a heat-transfer medium in condensation-type central heating boilers and condensation-type central heating boiler as such