| 摘要 |
<p>An envelope assembly of a succession of envelopes each includes a front and back panel and extractable insert material contained therein, the insert material comprising a top-opening return mailer envelope connected to a portion of the envelope by means of a panel forming a portion or chip of the return envelope which is separable therefrom, and which is retained with the envelope upon extraction of the insert. As an alternative, the chip of the return envelope is connected to an insert sheet within each envelope.</p> |
