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US4961917A   [0009] 
US2001008624A   [0009] 
US2010003178A   [0009] 
US20120190534A   [0009] 
WO2013035077A   [0009] 
US20100322847A   [0009] 
US3308069A   [0017]  [0113] 
JP2017239174A   [0228]