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Chun Yuan Chang

📍 New Taipei, TW: #27 of 273 inventorsTop 10%
Overall (2002): #31,917 of 266,432Top 15%
3
Patents 2002

Issued Patents 2002

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6427343 Pencil sharpener having a pencil limiting device — 2002-08-06
6427851 Rack having stackable configuration — 2002-08-06
D456452 Shelf device for stationery goods — 2002-04-30