Constructive disposition introduced in rate of birthdays and system for calculating the day of the week of birthdays.More precisely, it is a kind of binding (and) which is an index of the birthday (1) that includes layout exclusive for annotation of birthdays, among other issues, conventionalBeing said index with a sheet where it is described a unique system (1) for a given calculation that allows to find the day of the week of birth of each of the respective birthdays; the binding (E) is formed by a group of multiple sheets (f) and V Ariar quantd size and volume, and receive a cover (F1) and the cover (F2).As said sheets (f) can be arranged in groups with different diagramau00e7u00f5es, which are: a simplified layout (2) and (3) for diagramming complex organization names and birth dates, arranged in alphabetical order, grids with spacing appropriate for The annotation of personal information of the birthday, such as, address, telephone, e - mail,Among others, and the layout data (DE) with the calculation system (1) for the verification of the day of the week of their birthdays, enabling the user to organize and store special dates for memory.
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