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A multi-purpose electrician repair tool_EW911 design patent certificate
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2020301730277 – design patent certificate (stamped) (1)
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Wenzhou Zhengyuan Electronics – 2024305606065 test pen (3) – design patent certificate
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A multi-purpose electrician repair tool_EW911 utility model patent details
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A multi-purpose electrician repair tool_EW911 utility model patent certificate
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Wenzhou Zhengyuan Electronics – 2024305767777 anti-mosquito aromatherapy brim lamp – design patent certificate
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Wenzhou Zhengyuan Electronics – 2024305767743 mosquito-repellent wristband (illuminated anti-mosquito aromatherapy ESD) – design patent certificate
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2020301730277 – design patent certificate (stamped)
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2020301730277 – certificate (VD12 design patent)
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A leakage detection pen for power equipment (utility model purchased)
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Multifunctional test pen – certificate (301 design patent)
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Wenzhou Zhengyuan Electronics_2023307995612_test pen (1)_design patent certificate_20240614084058_(1)
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