| 摘要 |
Disclosed is a device for creasing paper or card before it is folded consists of a drum or roller 2 including grooves of various widths and depths to hold rubber O-rings 24,26,28. An adjacent drum or roller 4 has receiving grooves 14,16,18 that are slightly wider and deeper. The O- rings align with the grooves so that a sheet of paper fed between the drums will be creased by the pressure of the O- rings forcing the paper into the receiving grooves.
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