Description  Claims  Drawing  Cited references 

AT505305A4   [0007]  [0012] 
EP0664443A1   [0008]  [0012] 
US3936193A   [0009]  [0012] 
JP2009139352A   [0010]  [0012] 
JPH11211412A   [0011]  [0012] 
JP2013213721A   [0012]