Chemical preparations for use as a tooth-whitening ingredient in confectionery, gums, breath strips, food products, and beverages; chemical preparations for use as whitening ingredient in toothpaste, tooth bleaching preparations, mouthwash, tooth strips, dental floss, tooth whitening preparations and mouth sprays

Housing specially adapted for a residential electric generator; temporary housing of attachable walls specially adapted for enclosing a residential electric generator when deployed in use outdoors

Collection and preservation of human blood

Electrical repairs, maintenance, and installation of electrical wiring, outlets, light fixtures, and electrical panels