A reusable mailer is provided whereby the mailer includes a front panel, back panel, and flap having a plurality of separable panels, whereby each panel is capable of closing and opening the mailer. The mailer may also include transparent sleeves for viewing an insertable card having mailing indicia...http://www.google.fr/patents/US6435404?utm_source=gb-gplus-shareBrevet US6435404 - Return mailer
