To an insured under 65 years of age who, on June 1, 1980, actually is a person set forth in the upper column of the table in Article 8, paragraph (1) of the Supplementary Provisions of Act No. 182 as amended by the provisions of Article 6, whose insured period on or after April 1, 1961 prescribed in that paragraph is, respectively, the period prescribed in the lower column of that table or more, who has not satisfied the insured period necessary to receive an old-age pension under the Employees' Pension Insurance Act, and whose standardized remuneration grade is any of Grade 1 through Grade 25, an aggregated old-age pension under Article 46-3 of that Act as amended by the provisions of Article 1 is paid, deeming that person to fall under that Article even where the person does not.