Tong Hwa Yong

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Singapore, SG

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Patents Applicationslast 30 patents

Information Patent Application
Improved Method of Assembling Metal Doors and Metal Doors Assembled...
- Publication number 20070193206
- Publication date Aug 23, 2007
- Malaysia Woodworking (Pte) Ltd.
- Toong Chuan Yong
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS