. "NATIONAL CARBON COMPANY INC." . "20151" . "data deposito: 04/08/1920" . "NATIONAL CARBON COMPANY INC."^^ . . "NATIONAL CARBON COMPANY INC." . . . . "MR018150" . . . "FABBRICA" . "data deposito: 04/08/1920" . . "1920-08-04" . . .