A real time conversational verbal interactive toy apparatus capable of providing a conversational type response to an interrogatory message from a removably insertable magnetic storage medium which comprises a plurality of coextensive multipurpose audio tracks contained in a housing includes a multipurpose...http://www.google.es/patents/US4117605?utm_source=gb-gplus-sharePatente US4117605 - Real time conversational toy having secure playback response
Real time conversational toy having secure playback response
