ETA-process

Class [11]
Environmental Control Instrument Products lighting heating cooling cooking

Apparatus for heating and drying; drying apparatus for drying granular or granulated materials; attachments for dry-air producers for drying granular or granulated materials; heat exchangers; apparatus for drying granular or granulated plastics materials comprising containers for storing the material, dry air supply pipes, heating means for the dry air, damp exhaust air return pipes, heat-exchange means between the dry air and the exhaust air.