Guoqiang LIN

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Kunming, CN

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Patents Grantslast 30 patents

Information Patent Grant
Floor drain for same floor drainage without descending floor of bui...
- Patent number 9,988,804
- Issue date Jun 5, 2018
- Guoqiang Lin
- E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

Information Patent Application
FLOOR DRAIN FOR SAME FLOOR DRAINAGE WITHOUT DESCENDING FLOOR OF BUI...
- Publication number 20180023279
- Publication date Jan 25, 2018
- KUNMING QUNZHIYING TECHNOLOGY CO., LTD
- Guoqiang LIN
- E03 - WATER SUPPLY SEWERAGE