Chak-Tong Chu

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Yuen Long, HK

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Patents Grantslast 30 patents

Information Patent Grant
Outdoor heater
- Patent number 7,974,526
- Issue date Jul 5, 2011
- Honor Tone, Ltd.
- Chak-Tong Chu
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
OUTDOOR HEATER
- Publication number 20090214194
- Publication date Aug 27, 2009
- HONOR TONE, LTD.
- Chak-Tong Chu
- F24 - HEATING RANGES VENTILATING