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Head-mounted fan

by CHEN LIFANG
Year of Publication 01.08.2023
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Patent

Head-mounted fan

by CHEN LIFANG
Year of Publication 01.08.2023
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Patent

LED mask

by LI LIFANG
Year of Publication 14.07.2023
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Patent

Laser cutting machine

by LI LIFANG
Year of Publication 04.07.2023
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Patent