[1]Patent:US2003/144507,2003,A1
[1]Patent:US2003/144507,2003,A1
[2]Patent:EP1258252,2002,A1
[3]Patent:US2004/18192,2004,A1
[1]Patent:US2003/144507,2003,A1
[2]Patent:EP1258252,2002,A1
[3]Patent:US2004/18192,2004,A1
[1]Patent:EP1258252,2002,A1
[2]Patent:US2004/18192,2004,A1