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1. (WO1997015794) METHOD AND ARRANGEMENT FOR CONVEYING HEAT FROM EXHAUST AIR INTO INLET AIR BY A HEAT EXCHANGER VIA WHICH NON-FREEZING HEAT TRANSFER LIQUID IS CIRCULATED
Available information on National Phase entries(more information)
OfficeEntry DateNational NumberNational Status
Sweden 17.04.199898013337Published: 24.06.1998
Germany 08.10.199819681613