An adjustable suspension for attaching a piece of furniture to a wall includes a housing having an elongated supporting arm projecting therefrom. The upper edge of the arm is provided with a rough, preferably toothed, surface which engages a protrusion within the housing having a cooperating similar...http://www.google.com/patents/US3946979?utm_source=gb-gplus-sharePatent US3946979 - Adjustable suspension for attaching pieces of furniture to a wall
