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Shenzhen Changyi Technology Co., Ltd.
4 patents in portfolio
USD1100822
design
2025
Battery Charger
0 cites
USD1081552
design
2025
Emergency Power Supply with Inflator Pump
0 cites
USD1060332
design
2025
Mobile Phone Holder
0 cites
USD1051052
design
2024
Battery Charger
0 cites