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Office appliance

by BIAN LIU
Year of Publication 16.12.2015
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Patent
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ボールペン

Year of Publication 27.02.2025
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Patent
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Writing instrument

by Kawasaki Masayuki
Year of Publication 24.10.2017
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Patent
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Multi-functional pen container

by XU CONG
Year of Publication 12.08.2015
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Patent
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PENCIL LEAD

by BANZAI, Satoru, ARAI, Hiroyuki
Year of Publication 08.09.2021
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Patent
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BALL POINT PEN

by IWAMA TAKUGO, KOIDE AKANE
Year of Publication 20.10.2022
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Patent
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