A method and assembly for allowing prepaid telephone calling credit to be provided in conjunction with a greeting card. The greeting card assembly generally comprises a greeting card, an envelope having an inside pocket adapted to receive and hold the greeting card, and a unique visually discernible...http://www.google.de/patents/US5629977?utm_source=gb-gplus-sharePatent US5629977 - Method and assembly for providing telephone calling credit in combination with a greeting card
