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Jeff Wen Chieh Tsui
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Walnut, CA, US
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last 30 patents
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Patent Grant
Process for cleaning aquarium tank walls
Patent number
6,206,978
Issue date
Mar 27, 2001
Roger Williams General Hospital
Jeff Wen Chieh Tsui
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...