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String stopper
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Patent number 11,199,244
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Issue date Dec 14, 2021
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YKK Corporation
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Madoka Nanbu
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Buckle
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Patent number 10,588,383
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Issue date Mar 17, 2020
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YKK Corporation
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Madoka Nanbu
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A44 - HABERDASHERY JEWELLERY
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Buckle
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Patent number 9,930,937
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Issue date Apr 3, 2018
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YKK Corporation
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Madoka Nanbu
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A44 - HABERDASHERY JEWELLERY
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Side release buckle
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Patent number 9,655,412
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Issue date May 23, 2017
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YKK Corporation
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Madoka Nanbu
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A44 - HABERDASHERY JEWELLERY
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Side release buckle
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Patent number 9,015,912
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Issue date Apr 28, 2015
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YKK Corporation
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Madoka Nanbu
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A44 - HABERDASHERY JEWELLERY