Lab notebooks with carbon copies

KOKUYO Copy Book Back Carbon 3 Sheets Correction Return Slip B6 Horizontal 50 Sets U-191N

KOKUYO Uke-98N Copy Receipt Check Size Horizontal Type 50 Sets Two Color Printing Back Carbon Summary Set [3 Pieces]

KOKUYO 4-sheet Delivery Note Request Receipt Copy Book No Carbon B6 Horizontal 50 Sets U-334