| 摘要 |
A greeting card having a calculation wheel for determining the conception date of the user. The conceptionday greeting card includes a card member having at least one wall; and a conceptionday calculation wheel rotatably mounted on the at least one wall. The conceptionday calculation wheel includes an outer peripheral wheel section having first indicia thereon in the form of months and calendar days; and the calculation wheel also includes an inner wheel section rotatable relative to the outer peripheral wheel section; the inner wheel section having second indicia thereon in the form of a birth date marker and a conception date marker. Rotation of the birth date marker of the inner wheel section relative to the outer peripheral section is used to indicate the birth date of the user for determining the conception date of the user from the conception date marker of the inner section of the calculation wheel. In an alternate embodiment of the present invention, there is provided a greeting card having a calculation sliding member for determining the conception date of the user. The conceptionday greeting card includes a card member having at least one wall; and a conceptionday calculation sliding member slidably mounted relative to the at least one wall. The conceptionday calculation sliding member includes a front wall having first indicia thereon in the form of months and days. The at least one wall has a passageway therein for slidably receiving the conceptionday calculation sliding member therethrough. The at least one wall member having first and second windows formed therein; and for slidably moving of the conceptionday calculation sliding member through the passageway relative to the at least one wall member to position the conceptionday calculation sliding member to line-up with the user's birth date with the first window to determine the conception date of the user in the second window.
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