Gus Hall, general secretary of the Communist party in the United States, issued a statement yesterday calling the invasion of Cuba "an act of perfidy," "open export of counter-revolution" and an "act of imperialist aggression."
        The invaders, Mr. Hall said "were unleashed against Cuba by a deliberate decision of the United States Government." The Cuban Revolutionary Council heading the invasion, he charged, was "handpicked by the State Department as the future government to be recognized by the United States when established on Cuban soil."
        Mr. Hall called on supporters of his position to send telegrams, resolutions and letters to President Kennedy demanding that he break relations with the council, repudiate the invasions and stop activities from American and Latin American bases.