Description  Claims  Drawing  Cited references 

US3915608A   [0004] 
DE102015108086   [0006]  [0024]  [0119] 
EP0187360A2   [0009] 
US3728053A   [0011] 
JPS60120023A   [0012] 
DE19521315A1   [0013]  [0013] 
JPS63111803A   [0014] 
DE2306366   [0015] 
DE102015108086A   [0119]