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BK50 Portable 10 Mega-pixel High Definition Book Scanner Capture Size A4 Document Camera for File Recognition Scanner
USB Document Camera 12MP for Teachers Laptop A3/A4 Size Portable Book Document Scanner with Extension Stand OCR Zoom Paint Tool
Dual-Camera Book Camera Scanner W1200T Pro 1200dpi HD+500dpi A3 Size Fast Scanning for Home/Office/School Support Windows OS
12MP USB Document Camera for Teachers Laptop A3/A4 Size Portable Book Document Scanner with Extension Stand OCR Zoom Paint Tool