Description  Claims  Drawing  Cited references 

US3326944A   [0005] 
EP0356703A   [0006] 
US8193382B   [0007] 
US8865921B   [0008] 
US8242292B   [0008] 
WO2013033058A   [0008] 
US7700788B   [0009] 
US4590283A   [0013] 
EP2703395A   [0013] 
US7317116B2   [0013] 
EP2015063578W   [0017] 
EP1427715B2   [0023]