The invention relates to a device (10) comprising a housing wherein a communication station is accommodated, said communication station comprising an inner antenna (12), wherein the housing comprises a wall (14) which has a transversal outer communication surface (16) which is generally vertical and...http://www.google.co.uk/patents/US7699224?utm_source=gb-gplus-sharePatent US7699224 - Device provided with means for maintenance against a communication surface of a contactless data medium
