Beschreibung     Ansprüche     Zeichnung  

DE10305272A1   [0005] 
DE69510922T2   [0006] 
DE1001447A   [0007] 
US3657399A   [0008] 
DE2211906A   [0009] 
EP1124094A1   [0011] 
US1806113A   [0012] 
FR2705443A   [0013] 
BE527969A   [0014] 
DE20307026U1   [0015] 
EP2189743A1   [0016] 
DE3909340A1   [0017]