41. Think of it as digital carbon paper . 42. This can be done using carbon paper . 43. She can place the letter in an envelope lined with carbon paper and send it to Bob. 44. Roller copiers competed with carbon paper technology. 45. The 60 employees are using other relics of record-keeping _ carbon paper , ink pads and worn rubber stamps. 46. He is 15, too young to remember a world of mimeograph machines, carbon paper , and black desk phones. 47. He wrapped the dynamite with tin foil and black carbon paper and drove back to the same location. 48. Outside, under trees, documents are produced by men hunched over manual typewriters; copies are made with carbon paper . 49. Every dime-store historian wants to see Bosnia as a duplicate that suits the carbon paper in his mind. 50. They wanted to know if we ever threw out any magazines or ink pens or even carbon paper ,
