Description     Claims     Drawing  

EP1683704A2   [0008] 
DE9314133U1   [0009]  [0010] 
FR2686432A1   [0010] 
US4681055A   [0011] 
DE2925156B1   [0012] 
EP1985520A1   [0013] 
DE102006055774   [0014] 
WO2007009420A   [0015] 
DE4101810   [0016] 
WO9009293A   [0017]