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Patents Grantslast 30 patents

Information Patent Grant
Boiler ash remover based on combined flow
- Patent number 10,551,063
- Issue date Feb 4, 2020
- NANJING CHANGRONG ACOUSTIC INC.
- Rongchu Zhang
- F22 - STEAM GENERATION
Information Patent Grant
Sound absorption plate with unit structure
- Patent number 10,026,390
- Issue date Jul 17, 2018
- NANJING CHANGRONG ACOUSTIC INC.
- Rongchu Zhang
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
BOILER ASH REMOVER BASED ON COMBINED FLOW
- Publication number 20180187886
- Publication date Jul 5, 2018
- NANJING CHANGRONG ACOUSTIC INC.
- RONGCHU ZHANG
- F22 - STEAM GENERATION
Information Patent Application
SOUND ABSORPTION PLATE WITH UNIT STRUCTURE
- Publication number 20180137852
- Publication date May 17, 2018
- NANJING CHANGRONG ACOUSTIC INC.
- RONGCHU ZHANG
- E04 - BUILDING