Housely Industries, Inc.

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Hong Kong SAR, CN

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Patents Grantslast 30 patents

Information Patent Grant
Air-ventilator with high efficiency thermal exchanger and air filter
- Patent number 6,966,356
- Issue date Nov 22, 2005
- Housely Industries, Inc.
- Kui Wong Yeung
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Air-ventilator with high efficiency thermal exchanger and air filter
- Patent number 6,684,939
- Issue date Feb 3, 2004
- Housely Industries, Inc.
- Kui Wong Yeung
- F28 - HEAT EXCHANGE IN GENERAL

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