public CENClient()
 {
     tipoDoc   = "";
     numDoc    = "";
     rznSocial = "";
     address   = new CENAddress();
     email     = "";
     telephone = "";
 }
 public CENCompany()
 {
     ruc             = "";
     razonSocial     = "";
     nombreComercial = "";
     address         = new CENAddress();
     email           = "";
     telephone       = "";
 }