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JIANGSU ZHOU JIJIE INTELLIGENT TECHNOLOGY CO., Ltd
4 patents in portfolio
US12448842
utility
2025
Two-step Step Stool
0 cites
US12232622
utility
2025
Folding Step Stool
0 cites
US11891857
utility
2024
Assembled Ladder
0 cites
US11821262
utility
2023
Lifting Positioning Structure for Ladder Tool Platform
0 cites