The present invention forms a see-through window (14) on the front cover (10) in order to facilitate the identification of the contents of the documents inserted in the approval plate without opening the approval plate, and summarizes the contents of the documents (20) inserted in the approval plate. The approval plate attached to the back surface 16 of the front cover 10 so that the pocket 18 having the opening 24 into which the card 22 describing the memo, the title or the reference phrase is inserted, corresponds to the viewing window 14. being.
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