Dao Qiang Zhu

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Koolong, HK

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Patents Grantslast 30 patents

Information Patent Grant
Sealed box apparatus for pool cleaning machine
- Patent number 7,752,697
- Issue date Jul 13, 2010
- Smartpool, Inc.
- Dao Qiang Zhu
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Sealed box apparatus for pool cleaning machine
- Publication number 20070251859
- Publication date Nov 1, 2007
- SMARTPOOL, INC.
- Dao Qiang Zhu
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR