cleaning both sides of a window simultaneously

Full Title

Cleaning windows > Power-driven machines or devices > cleaning both sides of a window simultaneously

Classification Context

Section:

HUMAN NECESSITIES

Class:

FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL

Subclass:

DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL