Show I TO PROMOTE TRADE RIO 1110 JANEIRO Brazil July 5 The North American chamber chamber of ot commerce and the Brazilian federation fedoration fedora federa tion of commerce signed an international international arbitration agreement I yesterday yesterday yester yester- I da day which is considered here hero of ot the greatest Importance ce to the better I I trade relationship between the United I I Stat States s and Brazil especially in view I of ot the present situation growing out 1 I of at the tho unfavorable exchange rate rato I I |