National Geographic : 1926 Sep
There is a brand-new Hoover, which alone offers the new double-efficiency principle in modern home-cleaning science: "POSITIVE AGITATION" fro This makes the differences If you want a really clean home, you ought to know all about this greater Hoover! Ohe HOOVER It BEATS *.. as it Sweeps as it Cleans PRESS OF JUDD & DETWEILER. INC. WASHINGTON. D. C.