Commercial ice cream freezers; Electric blankets, not for medical purposes; Energy storage plants; Filters, heaters and pumps sold in combination for use in swimming pools; Freeze drying equipment, namely, lyophilizers; Ice machines and apparatus; Laboratory freezers; Portable refrigerators; Refrigerating display cabinets; Water treatment apparatus, namely, clarification and thickening machines for use in treatment of liquids in the nature of water, waste water and industrial water