US Patent 7207467 Identifying devices for the visually handicapped

Devices which contain tactile and visually readable identifying indicia to assist the visually handicapped in identifying room numbers and the contents of items such as condiment shakers and liquid containers. The visually readable indicia allow a sighted person to correctly associate the device with the proper item to be identified. The devices take the form of bands which fit around the condiment holders, tags which may be attached to items by tying or adhering, and sleeves which may partially or fully surround the item. The identifying devices for room numbers may be clip-on sleeves for doorknobs or plates which attach to peep-hole tubes.