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US patents (#5693164, #6758720, #6780081, #6852001, #6857932, #6916224, #7052359)
Canada patent 2-459-555
Taiwan patents (#575407 and #592044)
Japan patent #3095349, #3721429
Hong Kong Patent #1060279
China patent ZL.02.2.85717.6, 2141924.8
Korea patent #10-0495696
Australia patent #2003249034
International Patent Pending |
