King Ming Ng

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Kwan Chung, HK

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Patents Grantslast 30 patents

Information Patent Grant
Retractable writing instrument
- Patent number 8,029,205
- Issue date Oct 4, 2011
- Willtech (PRC) Limited
- King Ming Ng
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
Retractable Writing Instrument
- Publication number 20100143020
- Publication date Jun 10, 2010
- King Ming Ng
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES