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John C. K. Sham

📍 Sha Tin, CN: #31 of 112 inventorsTop 30%
Overall (2003): #189,856 of 273,478Top 70%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6571421 Vacuum cleaner and steamer apparatus Kumkit Kunavongvorakul 2003-06-03