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Airbrush
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Patent number D913423
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Issue date Mar 16, 2021
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Ding Hwa Co., Ltd.
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Kwang-Tsan Chen
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D23 - Environmental heating and cooling
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Pump control device
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Patent number 9,897,085
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Issue date Feb 20, 2018
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Ding Hwa Co., Ltd.
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Kwang-Tsan Chen
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Air compressor
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Patent number D705818
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Issue date May 27, 2014
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Ding Hwa Co., Ltd.
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Kwang-Tsan Chen
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D15 - Machines not elsewhere specified
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Water filter cup
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Patent number D644297
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Issue date Aug 30, 2011
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Ding Hwa Co., Ltd.
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Kwang-Tsan Chen
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D23 - Environmental heating and cooling
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Small air compressor
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Patent number D622290
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Issue date Aug 24, 2010
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Ding Hwa Co., Ltd.
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Kwang-Tsan Chen
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D15 - Machines not elsewhere specified
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Cleaning jar for spray pens
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Patent number D552806
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Issue date Oct 9, 2007
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Ding Hwa Co., Ltd.
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Kwang-Tsan Chen
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D32 - Washing, cleaning, or drying machine
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Cap with a suction type spray head
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Patent number 7,152,813
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Issue date Dec 26, 2006
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Ding Hwa Co., Ltd.
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Kwang-Tsan Chen
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B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
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Air compressor
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Patent number D498483
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Issue date Nov 16, 2004
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Ding Hwa Co., Ltd.
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Kwang-Tsan Chen
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D15 - Machines not elsewhere specified
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Miniature air compressor
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Patent number 6,682,317
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Issue date Jan 27, 2004
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Ding Hua Co., Ltd.
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Kwang-Tsan Chen
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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