Air conditioning panels for use in walk-in coolers; Apparatus for the exchange of substances and heat for use in the production of steam, for use in cooking and for use in refrigeration; Bags and cases specially adapted for holding or carrying hand-held electric hair dryers; Chimney dampers; Dehumidifiers for household use; Electric cabinets used to control temperature and humidity for heating and proofing food goods; Equipment for treating groundwater and soil comprising distribution lines, ...