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Inventors
Guonian Hong
Zhejiang
CN
9 patents
5 Patents
US12616866
2026
Weight-visualized Dumbbell
Ningbo Haishu Longhao Fitness Appliances Co., Ltd.
0 cites
US11883707
2024
Weight-adjustable Dumbbell and Dumbbell Assembly
0 cites
US11806568
2023
Weight-adjustable Dumbbell
NINGBO HAISHU LONGHAO HEALTH EQUIPMENT CO., Ltd.
0 cites
US11717714
2023
Weight-adjustable Dumbbell and Dumbbell Assembly
0 cites
USD0987745
2023
Dumbbell Set
0 cites