| 摘要 |
A multiple sheet correspondence form (1) comprising a first sheet (2) having a rear face (4) for containing the first page of a correspondence text, with portions (8) which may be gummed. The first sheet (2) comprises, among other features, a first fold line (20) and a second fold line (22). The form (1) further comprises at least one second sheet (3) for containing at least the second page of a correspondence text, which is narrower than the first sheet (2). The form (1) may be folded along the first and second fold lines (20, 22) and sealed such as to guarantee the indivisibility and confidentiality of the content. The invention further relates to a processing machine (32) for multiple sheet correspondence forms (1) of the invention. |
