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WATERWORKS TECHNOLOGY DEVELOPMENT ORGANIZATION CO., Ltd.
4 patents in portfolio
US12601438
utility
2026
Sluice Valve Installation Method, and Sluice Valve Installation Structure Used in Sluice Valve Installation Method
0 cites
US12422081
utility
2025
Branch Pipe Forming Apparatus, Lid Doubling as Valve Element, Branch Pipe Forming Apparatus with Lid Doubling as Valve Element, and Branch Pipe Formation Method
0 cites
US11892111
utility
2024
Housing Device and Method for Mounting Housing Device
0 cites
US11655901
utility
2023
Gate Valve
0 cites