| 摘要 |
<p>A coupon document (D) enables a user to reveal one of two coupons (A' or B') in a manner which causes the other coupon (B' or A') to be destroyed. The document (D) comprises first and second panels (10, 12) held together along their outer peripheral edges by releasable glue. Each panel (10, 12) has a hidden inner side (16, 18) on which coupon indicia is imprinted. Each panel (10, 12) includes a pull strip (20, 30) which, when pulled off, destroys the coupon indicia on the respective panel (10 or 12) while enabling the coupon indicia on the other panel (12 or 10) to be revealed.</p> |
