Description     Claims     Drawing  

US6984309B   [0005] 
US6923949B   [0007] 
US7482300B   [0007] 
WO2012055755A1   [0008] 
EP2559483A2   [0009] 
US2012018349A1   [0009] 
US3140249A   [0052] 
US3140251A   [0052]