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Bidirectional air pump
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Patent number 7,284,968
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Issue date Oct 23, 2007
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Ho Lee Co., Ltd.
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Lung-Po Tsai
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Air pump
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Patent number 7,128,525
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Issue date Oct 31, 2006
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Ho Lee Co., Ltd.
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Chun-Chung Tsai
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Control valve
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Patent number 7,086,415
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Issue date Aug 8, 2006
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Ho Lee Co., Ltd.
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Lung-Po Tsai
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Pump structure
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Patent number D487752
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Issue date Mar 23, 2004
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Ho Lee Co., Ltd.
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Lung-Po Tsai
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D15 - Machines not elsewhere specified
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Air valve for an inflatable article
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Patent number 6,135,143
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Issue date Oct 24, 2000
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Ho Lee Co., Ltd.
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Tsai Long Po
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Structure of hand pump
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Patent number 6,119,581
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Issue date Sep 19, 2000
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Ho Lee Co., Ltd.
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Tsai Long Po
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Electronic pump
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Patent number D383762
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Issue date Sep 16, 1997
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Ho Lee Co., Ltd.
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Tsai Lung-Po
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D15 - Machines not elsewhere specified
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