Michael W. K. Keung

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Wan Chai, HK

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Patents Grantslast 30 patents

Information Patent Grant
Novelty drinking straw
- Patent number 6,129,292
- Issue date Oct 10, 2000
- Simon Marketing, Inc.
- Wallace W. K. Leung
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...