Description  Claims  Drawing  Cited references 

US7305797B   [0004] 
US2004206007A   [0004] 
EP1997994A   [0004] 
EP0407150A   [0005] 
FR2320409   [0005] 
DE3641214   [0008] 
EP0244506A   [0009] 
WO2012156949A   [0138]