Daniel W K Hong

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Kowloon, HK

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Patents Grantslast 30 patents

Information Patent Grant
Multi-operational battery powered vacuum cleaner
- Patent number 6,839,934
- Issue date Jan 11, 2005
- Black & Decker Inc.
- Stephen Houghton
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...