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Application filed by Theodor GruessnerfiledCriticalTheodor Gruessner
Priority to DD19660476ApriorityCriticalpatent/DD129087A1/de
Publication of DD129087A1publicationCriticalpatent/DD129087A1/de
Anordning foer att bibehaolla ett foer avgivning under olika temperatur- respektive klimatfoerhaollanden avsett fluidum vid en foerutbestaemd temperatur