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| | Origins of the Institution / CITEL |
 | | The first American International Conference in March 1890 adopted two resolutions regarding communications: the first one recommended that the 18 participating countries promote telegraphic lines with regular services and equitable tariffs as a means of improving communication across the region. |
 | | The Third Inter-American Radiocommunications Conference was held in Rio de Janeiro, Brazil, in September 1945. |
 | | The fourth Radiocommunications Conference was held in Washington, D.C., United States, in April-July 1949, with the participation of 19 countries: Argentina, Bolivia, Brazil, Canada, Colombia, Costa Rica, Cuba, El Salvador, Ecuador, the United States of America, Guatemala, Honduras, Mexico, Nicaragua, Panama, Dominican Republic, Uruguay, and Venezuela. |
| www.citel.oas.org /origin_e.asp (2049 words) |
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