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Patent applications and USPTO patent grants for SHIH; TUNG-HAN.The latest application filed is for "telescopic coupling tube for a vacuum cleaner".
Patent | Date |
---|---|
Telescopic Coupling Tube For A Vacuum Cleaner App 20100123305 - SHIH; TUNG-HAN | 2010-05-20 |
Dust absorption head of a vacuum cleaner Grant 7,571,514 - Shih August 11, 2 | 2009-08-11 |
Dust absorption head of a vacuum cleaner App 20080313847 - Shih; Tung-Han | 2008-12-25 |
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