Hernán Duran                                                      
 

Francisco Mardones                                            
 

Fidel Urrutia                                                      
 

Ruperto Huerta                                                  
 

Norberto Espinosa                                              
 

Francisco Mardones                                           
 

Luis Vera Ocampo                                             
 

Raúl Vargas                                                      
 

Vladimiro Rathauser                                            
 

                  Juan Carlos Veronelli                             1992                 1996
 

                 Nilton Arnt                                            1996                 1997
 

                 José Fiusa Lima                                     1997                 2004
 

                             José Fernando P. Dora                            2004                 0000             

`