31417490telecommunications buildingsPT2026-03-30 20:52:21UF31417491buildings, telecommunicationsNDUF31417492telecommunications buildingNDBT31381361communications buildingsPTNT31442959broadcasting stationsPTNT31442964relay stationsPTNT31442971satellite tracking stationsPTNT31442977telegraph officesPTNT31442980telegraph stationsPTNT31442983telephone exchangesPTNT31485364broadcasting towersPTRT31318341telecommunicationsPT