Cleaning-machines in which the cleaning instrument is a wiper as distinguished from a brush, broom, or scraper and which are especially adapted for cleaning the glass of windows.
SEE OR SEARCH THIS CLASS, SUBCLASS:
220.1+, for a wiper used as a window cleaning implement.
232, for a window cleaning wiper or polisher consisting of a flat sheet of fabric with means for holding the sheet flat.
250.001+, for an attachable implement or machine used to clean a window or other optical implement.
