| 摘要 |
The assembly consists of several paper sheets, e.g. joined together by perforation lines (2) in a continuous length. Each section between perforations has at least one self-copying dispatch sheet (22). One or more self-copying receipt sheets (14,15) of the same shape and dimensions are joined together so they can be easily separated. - The assembly also incorporates a rectangular base layer (23) which can act as a cover when a section is separated from the continuous length and folded. The edges (4) of the continuous assembly are in the form of tear-off strips.
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