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1. WO1981003056 - DEVICE FOR CONTROLLING A DAMPER REGULATOR AT HEATING BOILERS

Available information on National Phase entries(more information)
OfficeEntry DateNational NumberNational Status
Austria21.12.1981
Finland22.12.1981814122Granted: 13.04.1987
Norway23.12.198119814411
Germany15.07.19823144417