Disintegrators for chemical processing; Electric door openers; Electric food blenders; Garbage disposal units; Garbage disposals; Garbage disposals featuring apparatus that aids in draining water; Waste disposal units; Window openers, electric; Carpet cleaning machines; Central vacuum cleaning installations; Compressor cleaning machines; Dry-cleaning machines; Dust removing installations for cleaning purposes; Electric welding machines; Electric floor polishing machines and apparatus; Electri...