A method and apparatus for communicating with people who are both deaf and blind is disclosed. The apparatus comprises a keyboard controlled electromechanical hand. The electromechanical hand is programmed to form the letters of the standard one-hand manual alphabet through the use of an electronic buffer...http://www.google.com/patents/US4074444?utm_source=gb-gplus-sharePatent US4074444 - Method and apparatus for communicating with people
