Description     Claims     Drawing  

GB2388052A   [0011] 
US2007275827A1   [0011] 
DE3440771A1   [0011] 
US2008229501A1   [0011] 
DE3600057A1   [0011] 
US2006162073A1   [0011] 
US2004250346A1   [0011] 
US2004088789A1   [0011] 
US2010267532A1   [0011]