公开(公告)号：US4826211A

公开(公告)日：1989-05-02

申请号：US76757

申请日：1987-07-23

申请人： Michael J. Sinnott ,  Adrian J. McCullagh

发明人： Michael J. Sinnott ,  Adrian J. McCullagh

IPC分类号： A63F3/06 ,  B42D15/04 ,  B42D15/00 ,  A44C3/00 ,  A61F13/02 ,  B42D15/02

CPC分类号： B42D15/04 ,  A63F3/0665 ,  Y10T428/1486

摘要： The invention comprises a greeting card having first and second hingedly connected sheets with indicia thereon in conventional format, with the addition of a third hinged sheet juxtaposed with the second sheet and in sealed relationship thereto. The third sheet is sealed to the second sheet around their free edges, and contains further indicia which is not normally visible, and is revealed only by irreversibly destroying the integrity of the seal between the second and third sheets. In another embodiment of the invention, the third sheet is detachably attached to the second sheet so that it may be detached and affixed repetitively.

摘要翻译： 本发明包括一种贺卡，其具有第一和第二铰链连接片材，其上具有常规格式的标记，同时加上与第二片材并置并与其密封的第三铰链片材。 第三片材围绕其自由边缘密封到第二片材，并且包含通常不可见的另外的标记，并且仅通过不可逆地破坏第二和第三片材之间的密封件的完整性而显露出来。 在本发明的另一个实施例中，第三片可拆卸地附接到第二片，使得它可以被重新分离并固定。