Description  Claims  Drawing  Cited references 

US2007103046A   [0006] 
US2008050264A   [0006] 
WO2009034318A   [0006] 
US7851984B2   [0009] 
DE102012212042   [0013] 
DE102011007694   [0013] 
US2009026188A1   [0045] 
US2008156781A1   [0045] 
US20110073579A   [0046] 
US20110073579A1   [0055]