Yu Chi Lok

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Hong Kong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Toilet apparatus
- Patent number 9,663,933
- Issue date May 30, 2017
- DEFOND HOLDINGS (H. K.) CO. LIMITED
- Kai Chi Chan
- E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

Information Patent Application
TOILET APPARATUS
- Publication number 20160333561
- Publication date Nov 17, 2016
- DEFOND COMPONENTS LIMITED
- Kai Chi Chan
- E03 - WATER SUPPLY SEWERAGE