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Coffee extraction device and method
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Patent number 10,667,643
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Issue date Jun 2, 2020
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Coway Co., Ltd.
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Tae-Yong Son
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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Unspun acrylic staple fibers
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Patent number 5,589,264
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Issue date Dec 31, 1996
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Korea Institute of Science and Technology
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Han S. Yoon
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D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
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Polymer alloy fiber and process therefor
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Patent number 4,622,265
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Issue date Nov 11, 1986
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Korea Advanced Institute of Science and Technology
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Han Sik Yoon
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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