electric blankets for household purposes; heating electrothermal cushions not for medical purposes; hot water heating packs not for medical purposes; chemically activated heating packs for providing warmth to the eyes not for medical purposes; chemically activated heating packs for providing warmth to the knees not for medical purposes; chemically activated heating packs for providing warmth to the shoulders not for medical purposes; heating packs for providing warmth to the body not for medi...