Description  Claims  Cited references 

GB2234512A   [0016]  [0016] 
EP1017760B1   [0017] 
WO0216499A1   [0020] 
WO2008101809A1   [0021] 
US8772381B2   [0022] 
US8734581B2   [0023] 
WO2009062925A   [0024] 
US20100227954A1   [0025] 
WO2014043021A1   [0026] 
EP2058056B1   [0027] 
DE202005003108U1   [0028] 
US20140076777A1   [0029]