[1]Patent:US4006160,1977,A,
[1]Patent:US4006160,1977,A,
[1]Patent:WO2006/123257,2006,A2,
[1]Patent:US4006160,1977,A,
[1]Patent:US4006160,1977,A
[1]Patent:WO2007/64883,2007,A2.Locationinpatent:Page/Pagecolumn249-250
[2]Patent:WO2006/123257,2006,A2.Locationinpatent:Page/Pagecolumn61
[1]Patent:WO2007/64883,2007,A2.Locationinpatent:Page/Pagecolumn250