A hand-held, electronic, bi-directional, wireless electronic communication device having a physical configuration which includes a relatively large, constantly visible display and an alphanumeric keyboard that can be concealed until needed....http://www.google.fr/patents/US7016182?utm_source=gb-gplus-shareBrevet US7016182 - Physical configuration of a hand-held electronic communication device
Physical configuration of a hand-held electronic communication device
